13+5x-10=21-x

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Solution for 13+5x-10=21-x equation:


Simplifying
13 + 5x + -10 = 21 + -1x

Reorder the terms:
13 + -10 + 5x = 21 + -1x

Combine like terms: 13 + -10 = 3
3 + 5x = 21 + -1x

Solving
3 + 5x = 21 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + 5x + x = 21 + -1x + x

Combine like terms: 5x + x = 6x
3 + 6x = 21 + -1x + x

Combine like terms: -1x + x = 0
3 + 6x = 21 + 0
3 + 6x = 21

Add '-3' to each side of the equation.
3 + -3 + 6x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 6x = 21 + -3
6x = 21 + -3

Combine like terms: 21 + -3 = 18
6x = 18

Divide each side by '6'.
x = 3

Simplifying
x = 3

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