-x+3+5x-12+x=81

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Solution for -x+3+5x-12+x=81 equation:


Simplifying
-1x + 3 + 5x + -12 + x = 81

Reorder the terms:
3 + -12 + -1x + 5x + x = 81

Combine like terms: 3 + -12 = -9
-9 + -1x + 5x + x = 81

Combine like terms: -1x + 5x = 4x
-9 + 4x + x = 81

Combine like terms: 4x + x = 5x
-9 + 5x = 81

Solving
-9 + 5x = 81

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 5x = 81 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = 81 + 9
5x = 81 + 9

Combine like terms: 81 + 9 = 90
5x = 90

Divide each side by '5'.
x = 18

Simplifying
x = 18

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