(11x+24)+(x+18)=90

Solution for (11x+24)+(x+18)=90 equation:

Simplifying
(11x + 24) + (x + 18) = 90

Reorder the terms:
(24 + 11x) + (x + 18) = 90

Remove parenthesis around (24 + 11x)
24 + 11x + (x + 18) = 90

Reorder the terms:
24 + 11x + (18 + x) = 90

Remove parenthesis around (18 + x)
24 + 11x + 18 + x = 90

Reorder the terms:
24 + 18 + 11x + x = 90

Combine like terms: 24 + 18 = 42
42 + 11x + x = 90

Combine like terms: 11x + x = 12x
42 + 12x = 90

Solving
42 + 12x = 90

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 12x = 90 + -42

Combine like terms: 42 + -42 = 0
0 + 12x = 90 + -42
12x = 90 + -42

Combine like terms: 90 + -42 = 48
12x = 48

Divide each side by '12'.
x = 4

Simplifying
x = 4