Question

Justify each statement with a property from algebra or property of congruence.

If $5y=-20$then $y=-4$.

Short answer

From the property of Algebra, it is proved that $y=-4$.

Step-by-step solution

Step 1. Apply division property of algebra.

If $a=b$and $c\ne 0$, then $\frac{a}{c}=\frac{b}{c}$.

Step 2. Description of step.

Divide each side of the equation, $5y=-20$by 5.

$\frac{5y}{5}=\frac{-20}{5}$

Step 3. Description of step.

Simplify the equation mentioned in step 2 to find the value of y.

$y=-4$

Therefore, the value of y is$-4$ .