3y-6=21x

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Solution for 3y-6=21x equation: 


Simplifying
3y + -6 = 21x

Reorder the terms:
-6 + 3y = 21x

Solving
-6 + 3y = 21x

Solving for variable 'y'.

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

Add '6' to each side of the equation.
-6 + 6 + 3y = 6 + 21x

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

Divide each side by '3'.
y = 2 + 7x

Simplifying
y = 2 + 7x

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