12x-5-4x=31

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Solution for 12x-5-4x=31 equation:


Simplifying
12x + -5 + -4x = 31

Reorder the terms:
-5 + 12x + -4x = 31

Combine like terms: 12x + -4x = 8x
-5 + 8x = 31

Solving
-5 + 8x = 31

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 8x = 31 + 5

Combine like terms: -5 + 5 = 0
0 + 8x = 31 + 5
8x = 31 + 5

Combine like terms: 31 + 5 = 36
8x = 36

Divide each side by '8'.
x = 4.5

Simplifying
x = 4.5

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