6x+21=8x-5

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


Simplifying
6x + 21 = 8x + -5

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

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

Solving
21 + 6x = -5 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
21 + 6x + -8x = -5 + 8x + -8x

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

Combine like terms: 8x + -8x = 0
21 + -2x = -5 + 0
21 + -2x = -5

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

Combine like terms: 21 + -21 = 0
0 + -2x = -5 + -21
-2x = -5 + -21

Combine like terms: -5 + -21 = -26
-2x = -26

Divide each side by '-2'.
x = 13

Simplifying
x = 13

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