15=x-7x

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Solution for 15=x-7x equation:


Simplifying
15 = x + -7x

Combine like terms: x + -7x = -6x
15 = -6x

Solving
15 = -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
15 + 6x = -6x + 6x

Combine like terms: -6x + 6x = 0
15 + 6x = 0

Add '-15' to each side of the equation.
15 + -15 + 6x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 6x = 0 + -15
6x = 0 + -15

Combine like terms: 0 + -15 = -15
6x = -15

Divide each side by '6'.
x = -2.5

Simplifying
x = -2.5

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