-7y+3x=-21

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Solution for -7y+3x=-21 equation: 


Simplifying
-7y + 3x = -21

Reorder the terms:
3x + -7y = -21

Solving
3x + -7y = -21

Solving for variable 'x'.

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

Add '7y' to each side of the equation.
3x + -7y + 7y = -21 + 7y

Combine like terms: -7y + 7y = 0
3x + 0 = -21 + 7y
3x = -21 + 7y

Divide each side by '3'.
x = -7 + 2.333333333y

Simplifying
x = -7 + 2.333333333y

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