x+(1-20)+(x+15)=150

Solution for x+(1-20)+(x+15)=150 equation:

Simplifying
x + (1 + -20) + (x + 15) = 150

Combine like terms: 1 + -20 = -19
x + (-19) + (x + 15) = 150
x + -19 + (x + 15) = 150

Reorder the terms:
x + -19 + (15 + x) = 150

Remove parenthesis around (15 + x)
x + -19 + 15 + x = 150

Reorder the terms:
-19 + 15 + x + x = 150

Combine like terms: -19 + 15 = -4
-4 + x + x = 150

Combine like terms: x + x = 2x
-4 + 2x = 150

Solving
-4 + 2x = 150

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x = 150 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = 150 + 4
2x = 150 + 4

Combine like terms: 150 + 4 = 154
2x = 154

Divide each side by '2'.
x = 77

Simplifying
x = 77