2x+12=31-3x

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Solution for 2x+12=31-3x equation:


Simplifying
2x + 12 = 31 + -3x

Reorder the terms:
12 + 2x = 31 + -3x

Solving
12 + 2x = 31 + -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.
12 + 2x + 3x = 31 + -3x + 3x

Combine like terms: 2x + 3x = 5x
12 + 5x = 31 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 + 5x = 31 + 0
12 + 5x = 31

Add '-12' to each side of the equation.
12 + -12 + 5x = 31 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = 31 + -12
5x = 31 + -12

Combine like terms: 31 + -12 = 19
5x = 19

Divide each side by '5'.
x = 3.8

Simplifying
x = 3.8

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