3(-2x)-x-1=x+31

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Solution for 3(-2x)-x-1=x+31 equation:


Simplifying
3(-2x) + -1x + -1 = x + 31

Remove parenthesis around (-2x)
3 * -2x + -1x + -1 = x + 31

Multiply 3 * -2
-6x + -1x + -1 = x + 31

Reorder the terms:
-1 + -6x + -1x = x + 31

Combine like terms: -6x + -1x = -7x
-1 + -7x = x + 31

Reorder the terms:
-1 + -7x = 31 + x

Solving
-1 + -7x = 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.
-1 + -7x + -1x = 31 + x + -1x

Combine like terms: -7x + -1x = -8x
-1 + -8x = 31 + x + -1x

Combine like terms: x + -1x = 0
-1 + -8x = 31 + 0
-1 + -8x = 31

Add '1' to each side of the equation.
-1 + 1 + -8x = 31 + 1

Combine like terms: -1 + 1 = 0
0 + -8x = 31 + 1
-8x = 31 + 1

Combine like terms: 31 + 1 = 32
-8x = 32

Divide each side by '-8'.
x = -4

Simplifying
x = -4

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