21x-13-13x-3-6x=0

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Solution for 21x-13-13x-3-6x=0 equation:


Simplifying
21x + -13 + -13x + -3 + -6x = 0

Reorder the terms:
-13 + -3 + 21x + -13x + -6x = 0

Combine like terms: -13 + -3 = -16
-16 + 21x + -13x + -6x = 0

Combine like terms: 21x + -13x = 8x
-16 + 8x + -6x = 0

Combine like terms: 8x + -6x = 2x
-16 + 2x = 0

Solving
-16 + 2x = 0

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 2x = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 2x = 0 + 16
2x = 0 + 16

Combine like terms: 0 + 16 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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