9x+15=x+31

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Solution for 9x+15=x+31 equation:


Simplifying
9x + 15 = x + 31

Reorder the terms:
15 + 9x = x + 31

Reorder the terms:
15 + 9x = 31 + x

Solving
15 + 9x = 31 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + 9x + -1x = 31 + x + -1x

Combine like terms: 9x + -1x = 8x
15 + 8x = 31 + x + -1x

Combine like terms: x + -1x = 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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