21-2x=10x+15

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Solution for 21-2x=10x+15 equation:


Simplifying
21 + -2x = 10x + 15

Reorder the terms:
21 + -2x = 15 + 10x

Solving
21 + -2x = 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 + -2x + -10x = 15 + 10x + -10x

Combine like terms: -2x + -10x = -12x
21 + -12x = 15 + 10x + -10x

Combine like terms: 10x + -10x = 0
21 + -12x = 15 + 0
21 + -12x = 15

Add '-21' to each side of the equation.
21 + -21 + -12x = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -12x = 15 + -21
-12x = 15 + -21

Combine like terms: 15 + -21 = -6
-12x = -6

Divide each side by '-12'.
x = 0.5

Simplifying
x = 0.5

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