86.75-x=12.75+3x

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Solution for 86.75-x=12.75+3x equation:


Simplifying
86.75 + -1x = 12.75 + 3x

Solving
86.75 + -1x = 12.75 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
86.75 + -1x + -3x = 12.75 + 3x + -3x

Combine like terms: -1x + -3x = -4x
86.75 + -4x = 12.75 + 3x + -3x

Combine like terms: 3x + -3x = 0
86.75 + -4x = 12.75 + 0
86.75 + -4x = 12.75

Add '-86.75' to each side of the equation.
86.75 + -86.75 + -4x = 12.75 + -86.75

Combine like terms: 86.75 + -86.75 = 0.00
0.00 + -4x = 12.75 + -86.75
-4x = 12.75 + -86.75

Combine like terms: 12.75 + -86.75 = -74
-4x = -74

Divide each side by '-4'.
x = 18.5

Simplifying
x = 18.5

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