3y-21=-2x

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Solution for 3y-21=-2x equation: 


Simplifying
3y + -21 = -2x

Reorder the terms:
-21 + 3y = -2x

Solving
-21 + 3y = -2x

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + 3y = 21 + -2x

Combine like terms: -21 + 21 = 0
0 + 3y = 21 + -2x
3y = 21 + -2x

Divide each side by '3'.
y = 7 + -0.6666666667x

Simplifying
y = 7 + -0.6666666667x

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