x=-6x+21

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Solution for x=-6x+21 equation: 


Simplifying
x = -6x + 21

Reorder the terms:
x = 21 + -6x

Solving
x = 21 + -6x

Solving for variable 'x'.

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

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

Combine like terms: x + 6x = 7x
7x = 21 + -6x + 6x

Combine like terms: -6x + 6x = 0
7x = 21 + 0
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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