31+7x+1+12-4=180

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Solution for 31+7x+1+12-4=180 equation: 


Simplifying
31 + 7x + 1 + 12 + -4 = 180

Reorder the terms:
31 + 1 + 12 + -4 + 7x = 180

Combine like terms: 31 + 1 = 32
32 + 12 + -4 + 7x = 180

Combine like terms: 32 + 12 = 44
44 + -4 + 7x = 180

Combine like terms: 44 + -4 = 40
40 + 7x = 180

Solving
40 + 7x = 180

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + 7x = 180 + -40

Combine like terms: 40 + -40 = 0
0 + 7x = 180 + -40
7x = 180 + -40

Combine like terms: 180 + -40 = 140
7x = 140

Divide each side by '7'.
x = 20

Simplifying
x = 20

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