31+2x=3(3x-6)

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Solution for 31+2x=3(3x-6) equation:


Simplifying
31 + 2x = 3(3x + -6)

Reorder the terms:
31 + 2x = 3(-6 + 3x)
31 + 2x = (-6 * 3 + 3x * 3)
31 + 2x = (-18 + 9x)

Solving
31 + 2x = -18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
31 + 2x + -9x = -18 + 9x + -9x

Combine like terms: 2x + -9x = -7x
31 + -7x = -18 + 9x + -9x

Combine like terms: 9x + -9x = 0
31 + -7x = -18 + 0
31 + -7x = -18

Add '-31' to each side of the equation.
31 + -31 + -7x = -18 + -31

Combine like terms: 31 + -31 = 0
0 + -7x = -18 + -31
-7x = -18 + -31

Combine like terms: -18 + -31 = -49
-7x = -49

Divide each side by '-7'.
x = 7

Simplifying
x = 7

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