15-21=8x+3x-10x

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Solution for 15-21=8x+3x-10x equation:


Simplifying
15 + -21 = 8x + 3x + -10x

Combine like terms: 15 + -21 = -6
-6 = 8x + 3x + -10x

Combine like terms: 8x + 3x = 11x
-6 = 11x + -10x

Combine like terms: 11x + -10x = 1x
-6 = 1x

Solving
-6 = 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-6 + -1x = 1x + -1x

Combine like terms: 1x + -1x = 0
-6 + -1x = 0

Add '6' to each side of the equation.
-6 + 6 + -1x = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = 0 + 6
-1x = 0 + 6

Combine like terms: 0 + 6 = 6
-1x = 6

Divide each side by '-1'.
x = -6

Simplifying
x = -6

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