8x+7=9x+9

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Solution for 8x+7=9x+9 equation:


Simplifying
8x + 7 = 9x + 9

Reorder the terms:
7 + 8x = 9x + 9

Reorder the terms:
7 + 8x = 9 + 9x

Solving
7 + 8x = 9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
7 + 8x + -9x = 9 + 9x + -9x

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

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

Add '-7' to each side of the equation.
7 + -7 + -1x = 9 + -7

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

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

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

Simplifying
x = -2

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