-6y-3y=21

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Solution for -6y-3y=21 equation: 


Simplifying
-6y + -3y = 21

Combine like terms: -6y + -3y = -9y
-9y = 21

Solving
-9y = 21

Solving for variable 'y'.

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

Divide each side by '-9'.
y = -2.333333333

Simplifying
y = -2.333333333

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