3-4y=-9

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Solution for 3-4y=-9 equation: 


Simplifying
3 + -4y = -9

Solving
3 + -4y = -9

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 + -4y = -9 + -3

Combine like terms: 3 + -3 = 0
0 + -4y = -9 + -3
-4y = -9 + -3

Combine like terms: -9 + -3 = -12
-4y = -12

Divide each side by '-4'.
y = 3

Simplifying
y = 3

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