-3x+9=81+8x

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Solution for -3x+9=81+8x equation:


Simplifying
-3x + 9 = 81 + 8x

Reorder the terms:
9 + -3x = 81 + 8x

Solving
9 + -3x = 81 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
9 + -3x + -8x = 81 + 8x + -8x

Combine like terms: -3x + -8x = -11x
9 + -11x = 81 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + -11x = 81 + 0
9 + -11x = 81

Add '-9' to each side of the equation.
9 + -9 + -11x = 81 + -9

Combine like terms: 9 + -9 = 0
0 + -11x = 81 + -9
-11x = 81 + -9

Combine like terms: 81 + -9 = 72
-11x = 72

Divide each side by '-11'.
x = -6.545454545

Simplifying
x = -6.545454545

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