x-31=3(3x+3)

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


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

Reorder the terms:
-31 + x = 3(3x + 3)

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

Solving
-31 + x = 9 + 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 + x + -9x = 9 + 9x + -9x

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

Combine like terms: 9x + -9x = 0
-31 + -8x = 9 + 0
-31 + -8x = 9

Add '31' to each side of the equation.
-31 + 31 + -8x = 9 + 31

Combine like terms: -31 + 31 = 0
0 + -8x = 9 + 31
-8x = 9 + 31

Combine like terms: 9 + 31 = 40
-8x = 40

Divide each side by '-8'.
x = -5

Simplifying
x = -5

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