-15-8x=10x+21

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


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

Reorder the terms:
-15 + -8x = 21 + 10x

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

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
-15 + -8x + -10x = 21 + 10x + -10x

Combine like terms: -8x + -10x = -18x
-15 + -18x = 21 + 10x + -10x

Combine like terms: 10x + -10x = 0
-15 + -18x = 21 + 0
-15 + -18x = 21

Add '15' to each side of the equation.
-15 + 15 + -18x = 21 + 15

Combine like terms: -15 + 15 = 0
0 + -18x = 21 + 15
-18x = 21 + 15

Combine like terms: 21 + 15 = 36
-18x = 36

Divide each side by '-18'.
x = -2

Simplifying
x = -2

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