(x-1)-(2x+5)=0

Solution for (x-1)-(2x+5)=0 equation:

Simplifying
(x + -1) + -1(2x + 5) = 0

Reorder the terms:
(-1 + x) + -1(2x + 5) = 0

Remove parenthesis around (-1 + x)
-1 + x + -1(2x + 5) = 0

Reorder the terms:
-1 + x + -1(5 + 2x) = 0
-1 + x + (5 * -1 + 2x * -1) = 0
-1 + x + (-5 + -2x) = 0

Reorder the terms:
-1 + -5 + x + -2x = 0

Combine like terms: -1 + -5 = -6
-6 + x + -2x = 0

Combine like terms: x + -2x = -1x
-6 + -1x = 0

Solving
-6 + -1x = 0

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 + -1x = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = 0 + 6
-1x = 0 + 6

Combine like terms: 0 + 6 = 6
-1x = 6

Divide each side by '-1'.
x = -6

Simplifying
x = -6