9(x-1)=7x+7

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Solution for 9(x-1)=7x+7 equation:


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

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

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

Solving
-9 + 9x = 7 + 7x

Solving for variable 'x'.

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

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

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

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

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

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

Combine like terms: 7 + 9 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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