31=4(x-5)+12

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Solution for 31=4(x-5)+12 equation:


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

Reorder the terms:
31 = 4(-5 + x) + 12
31 = (-5 * 4 + x * 4) + 12
31 = (-20 + 4x) + 12

Reorder the terms:
31 = -20 + 12 + 4x

Combine like terms: -20 + 12 = -8
31 = -8 + 4x

Solving
31 = -8 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
31 + -4x = -8 + 4x + -4x

Combine like terms: 4x + -4x = 0
31 + -4x = -8 + 0
31 + -4x = -8

Add '-31' to each side of the equation.
31 + -31 + -4x = -8 + -31

Combine like terms: 31 + -31 = 0
0 + -4x = -8 + -31
-4x = -8 + -31

Combine like terms: -8 + -31 = -39
-4x = -39

Divide each side by '-4'.
x = 9.75

Simplifying
x = 9.75

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