-3*3-4y=12

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Solution for -3*3-4y=12 equation: 


Simplifying
-3 * 3 + -4y = 12

Multiply -3 * 3
-9 + -4y = 12

Solving
-9 + -4y = 12

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + -4y = 12 + 9

Combine like terms: -9 + 9 = 0
0 + -4y = 12 + 9
-4y = 12 + 9

Combine like terms: 12 + 9 = 21
-4y = 21

Divide each side by '-4'.
y = -5.25

Simplifying
y = -5.25

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