x+9=-(x-8)

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


Simplifying
x + 9 = -1(x + -8)

Reorder the terms:
9 + x = -1(x + -8)

Reorder the terms:
9 + x = -1(-8 + x)
9 + x = (-8 * -1 + x * -1)
9 + x = (8 + -1x)

Solving
9 + x = 8 + -1x

Solving for variable 'x'.

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

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

Combine like terms: x + x = 2x
9 + 2x = 8 + -1x + x

Combine like terms: -1x + x = 0
9 + 2x = 8 + 0
9 + 2x = 8

Add '-9' to each side of the equation.
9 + -9 + 2x = 8 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 8 + -9
2x = 8 + -9

Combine like terms: 8 + -9 = -1
2x = -1

Divide each side by '2'.
x = -0.5

Simplifying
x = -0.5

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