3x-15-x=-7

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Solution for 3x-15-x=-7 equation:


Simplifying
3x + -15 + -1x = -7

Reorder the terms:
-15 + 3x + -1x = -7

Combine like terms: 3x + -1x = 2x
-15 + 2x = -7

Solving
-15 + 2x = -7

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 2x = -7 + 15

Combine like terms: -15 + 15 = 0
0 + 2x = -7 + 15
2x = -7 + 15

Combine like terms: -7 + 15 = 8
2x = 8

Divide each side by '2'.
x = 4

Simplifying
x = 4

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