有限数学示例

$a = 6 i + 5 j$ , $b = 5 i + 4 j$

解题步骤 1

Move variables to the left and constant terms to the right.

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解题步骤 1.1

从等式两边同时减去 $5 j$ 。

$a - 5 j = 6 i$

$b = 5 i + 4 j$

解题步骤 1.2

从等式两边同时减去 $4 j$ 。

$a - 5 j = 6 i$

$b - 4 j = 5 i$

$a - 5 j = 6 i$

$b - 4 j = 5 i$

解题步骤 2

Write the system as a matrix.

$[\begin{array}{c} 1 & 0 & - 5 & 6 i \\ 0 & 1 & - 4 & 5 i \end{array}]$

解题步骤 3

Use the result matrix to declare the final solution to the system of equations.

$a - 5 j = 6 i$

$b - 4 j = 5 i$

解题步骤 4

The solution is the set of ordered pairs that make the system true.

$(6 i + 5 j, 5 i + 4 j, j)$

有限数学 示例