-9=2x+(x+8)

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Solution for -9=2x+(x+8) equation:


Simplifying
-9 = 2x + (x + 8)

Reorder the terms:
-9 = 2x + (8 + x)

Remove parenthesis around (8 + x)
-9 = 2x + 8 + x

Reorder the terms:
-9 = 8 + 2x + x

Combine like terms: 2x + x = 3x
-9 = 8 + 3x

Solving
-9 = 8 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-9 + -3x = 8 + 3x + -3x

Combine like terms: 3x + -3x = 0
-9 + -3x = 8 + 0
-9 + -3x = 8

Add '9' to each side of the equation.
-9 + 9 + -3x = 8 + 9

Combine like terms: -9 + 9 = 0
0 + -3x = 8 + 9
-3x = 8 + 9

Combine like terms: 8 + 9 = 17
-3x = 17

Divide each side by '-3'.
x = -5.666666667

Simplifying
x = -5.666666667

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