8-(x+1)=9+x

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Solution for 8-(x+1)=9+x equation:


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

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

Combine like terms: 8 + -1 = 7
7 + -1x = 9 + x

Solving
7 + -1x = 9 + 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.
7 + -1x + -1x = 9 + x + -1x

Combine like terms: -1x + -1x = -2x
7 + -2x = 9 + x + -1x

Combine like terms: x + -1x = 0
7 + -2x = 9 + 0
7 + -2x = 9

Add '-7' to each side of the equation.
7 + -7 + -2x = 9 + -7

Combine like terms: 7 + -7 = 0
0 + -2x = 9 + -7
-2x = 9 + -7

Combine like terms: 9 + -7 = 2
-2x = 2

Divide each side by '-2'.
x = -1

Simplifying
x = -1

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