81-2x=8x+12

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Solution for 81-2x=8x+12 equation:


Simplifying
81 + -2x = 8x + 12

Reorder the terms:
81 + -2x = 12 + 8x

Solving
81 + -2x = 12 + 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.
81 + -2x + -8x = 12 + 8x + -8x

Combine like terms: -2x + -8x = -10x
81 + -10x = 12 + 8x + -8x

Combine like terms: 8x + -8x = 0
81 + -10x = 12 + 0
81 + -10x = 12

Add '-81' to each side of the equation.
81 + -81 + -10x = 12 + -81

Combine like terms: 81 + -81 = 0
0 + -10x = 12 + -81
-10x = 12 + -81

Combine like terms: 12 + -81 = -69
-10x = -69

Divide each side by '-10'.
x = 6.9

Simplifying
x = 6.9

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