6+9x=15+(x-1)

Solution for 6+9x=15+(x-1) equation:

Simplifying
6 + 9x = 15 + (x + -1)

Reorder the terms:
6 + 9x = 15 + (-1 + x)

Remove parenthesis around (-1 + x)
6 + 9x = 15 + -1 + x

Combine like terms: 15 + -1 = 14
6 + 9x = 14 + x

Solving
6 + 9x = 14 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
6 + 9x + -1x = 14 + x + -1x

Combine like terms: 9x + -1x = 8x
6 + 8x = 14 + x + -1x

Combine like terms: x + -1x = 0
6 + 8x = 14 + 0
6 + 8x = 14

Add '-6' to each side of the equation.
6 + -6 + 8x = 14 + -6

Combine like terms: 6 + -6 = 0
0 + 8x = 14 + -6
8x = 14 + -6

Combine like terms: 14 + -6 = 8
8x = 8

Divide each side by '8'.
x = 1

Simplifying
x = 1