-3x-9=-x+7

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


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

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

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

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

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-9 + -3x + x = 7 + -1x + x

Combine like terms: -3x + x = -2x
-9 + -2x = 7 + -1x + x

Combine like terms: -1x + x = 0
-9 + -2x = 7 + 0
-9 + -2x = 7

Add '9' to each side of the equation.
-9 + 9 + -2x = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -2x = 7 + 9
-2x = 7 + 9

Combine like terms: 7 + 9 = 16
-2x = 16

Divide each side by '-2'.
x = -8

Simplifying
x = -8

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