Finite Math Examples

$3 y - 2 \cdot 3 = 9$

Step 1

Multiply $- 2$ by $3$ .

$3 y - 6 = 9$

Step 2

Move all terms not containing $y$ to the right side of the equation.

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Step 2.1

Add $6$ to both sides of the equation.

$3 y = 9 + 6$

Step 2.2

Add $9$ and $6$ .

$3 y = 15$

Step 3

Divide each term in $3 y = 15$ by $3$ and simplify.

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Step 3.1

Divide each term in $3 y = 15$ by $3$ .

$\frac{3 y}{3} = \frac{15}{3}$

Step 3.2

Simplify the left side.

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Step 3.2.1

Cancel the common factor of $3$ .

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Step 3.2.1.1

Cancel the common factor.

$\frac{3 y}{3} = \frac{15}{3}$

Step 3.2.1.2

Divide $y$ by $1$ .

$y = \frac{15}{3}$

Step 3.3

Simplify the right side.

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Step 3.3.1

Divide $15$ by $3$ .

$y = 5$