8x+21=4x-2+6x+5

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Solution for 8x+21=4x-2+6x+5 equation:


Simplifying
8x + 21 = 4x + -2 + 6x + 5

Reorder the terms:
21 + 8x = 4x + -2 + 6x + 5

Reorder the terms:
21 + 8x = -2 + 5 + 4x + 6x

Combine like terms: -2 + 5 = 3
21 + 8x = 3 + 4x + 6x

Combine like terms: 4x + 6x = 10x
21 + 8x = 3 + 10x

Solving
21 + 8x = 3 + 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 = 3 + 10x + -10x

Combine like terms: 8x + -10x = -2x
21 + -2x = 3 + 10x + -10x

Combine like terms: 10x + -10x = 0
21 + -2x = 3 + 0
21 + -2x = 3

Add '-21' to each side of the equation.
21 + -21 + -2x = 3 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 3 + -21
-2x = 3 + -21

Combine like terms: 3 + -21 = -18
-2x = -18

Divide each side by '-2'.
x = 9

Simplifying
x = 9

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