15-x=7x

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Solution for 15-x=7x equation:


Simplifying
15 + -1x = 7x

Solving
15 + -1x = 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.
15 + -1x + -7x = 7x + -7x

Combine like terms: -1x + -7x = -8x
15 + -8x = 7x + -7x

Combine like terms: 7x + -7x = 0
15 + -8x = 0

Add '-15' to each side of the equation.
15 + -15 + -8x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -8x = 0 + -15
-8x = 0 + -15

Combine like terms: 0 + -15 = -15
-8x = -15

Divide each side by '-8'.
x = 1.875

Simplifying
x = 1.875

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