31-x-20+3x+2=38

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Solution for 31-x-20+3x+2=38 equation:


Simplifying
31 + -1x + -20 + 3x + 2 = 38

Reorder the terms:
31 + -20 + 2 + -1x + 3x = 38

Combine like terms: 31 + -20 = 11
11 + 2 + -1x + 3x = 38

Combine like terms: 11 + 2 = 13
13 + -1x + 3x = 38

Combine like terms: -1x + 3x = 2x
13 + 2x = 38

Solving
13 + 2x = 38

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 38 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 38 + -13
2x = 38 + -13

Combine like terms: 38 + -13 = 25
2x = 25

Divide each side by '2'.
x = 12.5

Simplifying
x = 12.5

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