9(x-9)=7x-81

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Solution for 9(x-9)=7x-81 equation:


Simplifying
9(x + -9) = 7x + -81

Reorder the terms:
9(-9 + x) = 7x + -81
(-9 * 9 + x * 9) = 7x + -81
(-81 + 9x) = 7x + -81

Reorder the terms:
-81 + 9x = -81 + 7x

Add '81' to each side of the equation.
-81 + 81 + 9x = -81 + 81 + 7x

Combine like terms: -81 + 81 = 0
0 + 9x = -81 + 81 + 7x
9x = -81 + 81 + 7x

Combine like terms: -81 + 81 = 0
9x = 0 + 7x
9x = 7x

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

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

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

Divide each side by '2'.
x = 0

Simplifying
x = 0

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