Question

properties of parallelograms
example: opposite angles equal.
answer: round to whatever you
see in the problem.
ok

Explanation:

Step1: Subtract 15 from both sides

\(5x+15 - 15=75 - 15\)

Step2: Simplify

\(5x = 60\)

Step3: Divide both sides by 5

\(\frac{5x}{5}=\frac{60}{5}\)

Step4: Simplify

\(x = 12\)

Answer:

\(x = 12\)