x-7=8-(9+x)

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Solution for x-7=8-(9+x) equation:


Simplifying
x + -7 = 8 + -1(9 + x)

Reorder the terms:
-7 + x = 8 + -1(9 + x)
-7 + x = 8 + (9 * -1 + x * -1)
-7 + x = 8 + (-9 + -1x)

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

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

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

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

Add '7' to each side of the equation.
-7 + 7 + 2x = -1 + 7

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

Combine like terms: -1 + 7 = 6
2x = 6

Divide each side by '2'.
x = 3

Simplifying
x = 3

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