6x+21=8x-13

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Solution for 6x+21=8x-13 equation:


Simplifying
6x + 21 = 8x + -13

Reorder the terms:
21 + 6x = 8x + -13

Reorder the terms:
21 + 6x = -13 + 8x

Solving
21 + 6x = -13 + 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 = -13 + 8x + -8x

Combine like terms: 6x + -8x = -2x
21 + -2x = -13 + 8x + -8x

Combine like terms: 8x + -8x = 0
21 + -2x = -13 + 0
21 + -2x = -13

Add '-21' to each side of the equation.
21 + -21 + -2x = -13 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = -13 + -21
-2x = -13 + -21

Combine like terms: -13 + -21 = -34
-2x = -34

Divide each side by '-2'.
x = 17

Simplifying
x = 17

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