12x-31=3x+8

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Solution for 12x-31=3x+8 equation:


Simplifying
12x + -31 = 3x + 8

Reorder the terms:
-31 + 12x = 3x + 8

Reorder the terms:
-31 + 12x = 8 + 3x

Solving
-31 + 12x = 8 + 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.
-31 + 12x + -3x = 8 + 3x + -3x

Combine like terms: 12x + -3x = 9x
-31 + 9x = 8 + 3x + -3x

Combine like terms: 3x + -3x = 0
-31 + 9x = 8 + 0
-31 + 9x = 8

Add '31' to each side of the equation.
-31 + 31 + 9x = 8 + 31

Combine like terms: -31 + 31 = 0
0 + 9x = 8 + 31
9x = 8 + 31

Combine like terms: 8 + 31 = 39
9x = 39

Divide each side by '9'.
x = 4.333333333

Simplifying
x = 4.333333333

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