Answer:
Step-by-step explanation:
Simplifying
5(x + 3) = 45
Reorder the terms:
5(3 + x) = 45
(3 * 5 + x * 5) = 45
(15 + 5x) = 45
Solving
15 + 5x = 45
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + 5x = 45 + -15
Combine like terms: 15 + -15 = 0
0 + 5x = 45 + -15
5x = 45 + -15
Combine like terms: 45 + -15 = 30
5x = 30
Divide each side by '5'.
x = 6
Simplifying
x = 6
