3-9y=-72

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Solution for 3-9y=-72 equation: 


Simplifying
3 + -9y = -72

Solving
3 + -9y = -72

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + -9y = -72 + -3

Combine like terms: 3 + -3 = 0
0 + -9y = -72 + -3
-9y = -72 + -3

Combine like terms: -72 + -3 = -75
-9y = -75

Divide each side by '-9'.
y = 8.333333333

Simplifying
y = 8.333333333

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