-8x+15=2x+21

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Solution for -8x+15=2x+21 equation:


Simplifying
-8x + 15 = 2x + 21

Reorder the terms:
15 + -8x = 2x + 21

Reorder the terms:
15 + -8x = 21 + 2x

Solving
15 + -8x = 21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
15 + -8x + -2x = 21 + 2x + -2x

Combine like terms: -8x + -2x = -10x
15 + -10x = 21 + 2x + -2x

Combine like terms: 2x + -2x = 0
15 + -10x = 21 + 0
15 + -10x = 21

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

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

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

Divide each side by '-10'.
x = -0.6

Simplifying
x = -0.6

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