5(3+6x)-3=42

Solution for 5(3+6x)-3=42 equation:

Simplifying
5(3 + 6x) + -3 = 42
(3 * 5 + 6x * 5) + -3 = 42
(15 + 30x) + -3 = 42

Reorder the terms:
15 + -3 + 30x = 42

Combine like terms: 15 + -3 = 12
12 + 30x = 42

Solving
12 + 30x = 42

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + 30x = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 30x = 42 + -12
30x = 42 + -12

Combine like terms: 42 + -12 = 30
30x = 30

Divide each side by '30'.
x = 1

Simplifying
x = 1