-31=2x+4-7x

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Solution for -31=2x+4-7x equation:


Simplifying
-31 = 2x + 4 + -7x

Reorder the terms:
-31 = 4 + 2x + -7x

Combine like terms: 2x + -7x = -5x
-31 = 4 + -5x

Solving
-31 = 4 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-31 + 5x = 4 + -5x + 5x

Combine like terms: -5x + 5x = 0
-31 + 5x = 4 + 0
-31 + 5x = 4

Add '31' to each side of the equation.
-31 + 31 + 5x = 4 + 31

Combine like terms: -31 + 31 = 0
0 + 5x = 4 + 31
5x = 4 + 31

Combine like terms: 4 + 31 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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