31-7x=2x+15

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


Simplifying
31 + -7x = 2x + 15

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

Solving
31 + -7x = 15 + 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.
31 + -7x + -2x = 15 + 2x + -2x

Combine like terms: -7x + -2x = -9x
31 + -9x = 15 + 2x + -2x

Combine like terms: 2x + -2x = 0
31 + -9x = 15 + 0
31 + -9x = 15

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

Combine like terms: 31 + -31 = 0
0 + -9x = 15 + -31
-9x = 15 + -31

Combine like terms: 15 + -31 = -16
-9x = -16

Divide each side by '-9'.
x = 1.777777778

Simplifying
x = 1.777777778

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