7x-77=-2x+31

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Solution for 7x-77=-2x+31 equation:


Simplifying
7x + -77 = -2x + 31

Reorder the terms:
-77 + 7x = -2x + 31

Reorder the terms:
-77 + 7x = 31 + -2x

Solving
-77 + 7x = 31 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-77 + 7x + 2x = 31 + -2x + 2x

Combine like terms: 7x + 2x = 9x
-77 + 9x = 31 + -2x + 2x

Combine like terms: -2x + 2x = 0
-77 + 9x = 31 + 0
-77 + 9x = 31

Add '77' to each side of the equation.
-77 + 77 + 9x = 31 + 77

Combine like terms: -77 + 77 = 0
0 + 9x = 31 + 77
9x = 31 + 77

Combine like terms: 31 + 77 = 108
9x = 108

Divide each side by '9'.
x = 12

Simplifying
x = 12

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