3+3(1+8x)=-90

Solution for 3+3(1+8x)=-90 equation:

Simplifying
3 + 3(1 + 8x) = -90
3 + (1 * 3 + 8x * 3) = -90
3 + (3 + 24x) = -90

Combine like terms: 3 + 3 = 6
6 + 24x = -90

Solving
6 + 24x = -90

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 24x = -90 + -6

Combine like terms: 6 + -6 = 0
0 + 24x = -90 + -6
24x = -90 + -6

Combine like terms: -90 + -6 = -96
24x = -96

Divide each side by '24'.
x = -4

Simplifying
x = -4