3(-x)-7=-x

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Solution for 3(-x)-7=-x equation:


Simplifying
3(-1x) + -7 = -1x

Remove parenthesis around (-1x)
3 * -1x + -7 = -1x

Multiply 3 * -1
-3x + -7 = -1x

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

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

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

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

Add '7' to each side of the equation.
-7 + 7 + -2x = 0 + 7

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

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

Divide each side by '-2'.
x = -3.5

Simplifying
x = -3.5

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