Solve for y 4y+-9=-45

$4 y + - 9 = - 45$

Replace all occurrences of $+$ $-$ with a single $-$ . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because $1 \cdot - 1 = - 1$

$4 y - 9 = - 45$

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

Add $9$ to both sides of the equation.

$4 y = - 45 + 9$

Add $- 45$ and $9$ .

$4 y = - 36$

Divide each term in $4 y = - 36$ by $4$ and simplify.

Divide each term in $4 y = - 36$ by $4$ .

$\frac{4 y}{4} = \frac{- 36}{4}$

Simplify the left side.

Cancel the common factor of $4$ .

Cancel the common factor.

$\frac{4 y}{4} = \frac{- 36}{4}$

Divide $y$ by $1$ .

$y = \frac{- 36}{4}$

Simplify the right side.

Divide $- 36$ by $4$ .

$y = - 9$

Solve for y 4y+-9=-45

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