-2x+21=-2x+5+8x

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Solution for -2x+21=-2x+5+8x equation:


Simplifying
-2x + 21 = -2x + 5 + 8x

Reorder the terms:
21 + -2x = -2x + 5 + 8x

Reorder the terms:
21 + -2x = 5 + -2x + 8x

Combine like terms: -2x + 8x = 6x
21 + -2x = 5 + 6x

Solving
21 + -2x = 5 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
21 + -2x + -6x = 5 + 6x + -6x

Combine like terms: -2x + -6x = -8x
21 + -8x = 5 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -8x = 5 + 0
21 + -8x = 5

Add '-21' to each side of the equation.
21 + -21 + -8x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + -8x = 5 + -21
-8x = 5 + -21

Combine like terms: 5 + -21 = -16
-8x = -16

Divide each side by '-8'.
x = 2

Simplifying
x = 2

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