Answer: x=5
Simplifying 
5(x + -2) = 15 
 
Reorder the terms: 
5(-2 + x) = 15 
(-2 * 5 + x * 5) = 15 
(-10 + 5x) = 15 
 
Solving 
-10 + 5x = 15 
 
Solving for variable 'x'. 
 
Move all terms containing x to the left, all other terms to the right. 
 
Add '10' to each side of the equation. 
-10 + 10 + 5x = 15 + 10 
 
Combine like terms: -10 + 10 = 0 
0 + 5x = 15 + 10 
5x = 15 + 10 
 
Combine like terms: 15 + 10 = 25 
5x = 25 
 
Divide each side by '5'. 
x = 5 
 
Simplifying 
x = 5 
hope that was helpful.Thank you!!!