Contoh

x - [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}] = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}]

$x - [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}] = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}]$

Langkah 1

Move all terms not containing a variable to the right side.

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Langkah 1.1

Tambahkan

[\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$[\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$ ke kedua sisi persamaan.

x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$

x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$

Langkah 2

Sederhanakan sisi kanannya.

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Langkah 2.1

Tambahkan elemen yang seletak.

x = [\begin{array}{c} - 2 + 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 2 + 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Langkah 2.2

Simplify each element.

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Langkah 2.2.1

Tambahkan

- 2

$- 2$ dan

1

$1$ .

x = [\begin{array}{c} - 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Langkah 2.2.2

Kurangi

12

$12$ dengan

12

$12$ .

x = [\begin{array}{c} - 1 & 0 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Langkah 2.2.3

Tambahkan

2

$2$ dan

0

$0$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Langkah 2.2.4

Tambahkan

- 8

$- 8$ dan

10

$10$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Langkah 2.2.5

Untuk menuliskan

9

$9$ sebagai pecahan dengan penyebut umum, kalikan dengan

\frac{2}{2}

$\frac{2}{2}$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 \cdot \frac{2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 \cdot \frac{2}{2} & 4 + 1 \end{array}]$

Langkah 2.2.6

Gabungkan

9

$9$ dan

\frac{2}{2}

$\frac{2}{2}$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + \frac{9 \cdot 2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + \frac{9 \cdot 2}{2} & 4 + 1 \end{array}]$

Langkah 2.2.7

Gabungkan pembilang dari penyebut persekutuan.

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 9 \cdot 2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 9 \cdot 2}{2} & 4 + 1 \end{array}]$

Langkah 2.2.8

Sederhanakan pembilangnya.

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Langkah 2.2.8.1

Kalikan

9

$9$ dengan

2

$2$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 18}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 18}{2} & 4 + 1 \end{array}]$

Langkah 2.2.8.2

Tambahkan

3

$3$ dan

18

$18$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]$

Langkah 2.2.9

Tambahkan

4

$4$ dan

1

$1$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

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