9x+15=x-1

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Solution for 9x+15=x-1 equation:


Simplifying
9x + 15 = x + -1

Reorder the terms:
15 + 9x = x + -1

Reorder the terms:
15 + 9x = -1 + x

Solving
15 + 9x = -1 + 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.
15 + 9x + -1x = -1 + x + -1x

Combine like terms: 9x + -1x = 8x
15 + 8x = -1 + x + -1x

Combine like terms: x + -1x = 0
15 + 8x = -1 + 0
15 + 8x = -1

Add '-15' to each side of the equation.
15 + -15 + 8x = -1 + -15

Combine like terms: 15 + -15 = 0
0 + 8x = -1 + -15
8x = -1 + -15

Combine like terms: -1 + -15 = -16
8x = -16

Divide each side by '8'.
x = -2

Simplifying
x = -2

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