x-7=9-x

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Solution for x-7=9-x equation:


Simplifying
x + -7 = 9 + -1x

Reorder the terms:
-7 + x = 9 + -1x

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

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

Combine like terms: -1x + x = 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 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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