14x-7x=7x-7x-21

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Solution for 14x-7x=7x-7x-21 equation: 


Simplifying
14x + -7x = 7x + -7x + -21

Combine like terms: 14x + -7x = 7x
7x = 7x + -7x + -21

Reorder the terms:
7x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
7x = -21 + 0
7x = -21

Solving
7x = -21

Solving for variable 'x'.

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

Divide each side by '7'.
x = -3

Simplifying
x = -3

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