-6+3(1+5x)=72

Solution for -6+3(1+5x)=72 equation:

Simplifying
-6 + 3(1 + 5x) = 72
-6 + (1 * 3 + 5x * 3) = 72
-6 + (3 + 15x) = 72

Combine like terms: -6 + 3 = -3
-3 + 15x = 72

Solving
-3 + 15x = 72

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 15x = 72 + 3

Combine like terms: -3 + 3 = 0
0 + 15x = 72 + 3
15x = 72 + 3

Combine like terms: 72 + 3 = 75
15x = 75

Divide each side by '15'.
x = 5

Simplifying
x = 5