9x+7=31-3x

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Solution for 9x+7=31-3x equation:


Simplifying
9x + 7 = 31 + -3x

Reorder the terms:
7 + 9x = 31 + -3x

Solving
7 + 9x = 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.
7 + 9x + 3x = 31 + -3x + 3x

Combine like terms: 9x + 3x = 12x
7 + 12x = 31 + -3x + 3x

Combine like terms: -3x + 3x = 0
7 + 12x = 31 + 0
7 + 12x = 31

Add '-7' to each side of the equation.
7 + -7 + 12x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 12x = 31 + -7
12x = 31 + -7

Combine like terms: 31 + -7 = 24
12x = 24

Divide each side by '12'.
x = 2

Simplifying
x = 2

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