-3x-1+9=12-7x

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Solution for -3x-1+9=12-7x equation:


Simplifying
-3x + -1 + 9 = 12 + -7x

Reorder the terms:
-1 + 9 + -3x = 12 + -7x

Combine like terms: -1 + 9 = 8
8 + -3x = 12 + -7x

Solving
8 + -3x = 12 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
8 + -3x + 7x = 12 + -7x + 7x

Combine like terms: -3x + 7x = 4x
8 + 4x = 12 + -7x + 7x

Combine like terms: -7x + 7x = 0
8 + 4x = 12 + 0
8 + 4x = 12

Add '-8' to each side of the equation.
8 + -8 + 4x = 12 + -8

Combine like terms: 8 + -8 = 0
0 + 4x = 12 + -8
4x = 12 + -8

Combine like terms: 12 + -8 = 4
4x = 4

Divide each side by '4'.
x = 1

Simplifying
x = 1

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