-21-8x=10x+15

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


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

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

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

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

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

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

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

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

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

Simplifying
x = -2

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