2x-7x+15=3x+31

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Solution for 2x-7x+15=3x+31 equation:


Simplifying
2x + -7x + 15 = 3x + 31

Reorder the terms:
15 + 2x + -7x = 3x + 31

Combine like terms: 2x + -7x = -5x
15 + -5x = 3x + 31

Reorder the terms:
15 + -5x = 31 + 3x

Solving
15 + -5x = 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.
15 + -5x + -3x = 31 + 3x + -3x

Combine like terms: -5x + -3x = -8x
15 + -8x = 31 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -8x = 31 + 0
15 + -8x = 31

Add '-15' to each side of the equation.
15 + -15 + -8x = 31 + -15

Combine like terms: 15 + -15 = 0
0 + -8x = 31 + -15
-8x = 31 + -15

Combine like terms: 31 + -15 = 16
-8x = 16

Divide each side by '-8'.
x = -2

Simplifying
x = -2

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