9*9-4y=-36

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Solution for 9*9-4y=-36 equation: 


Simplifying
9 * 9 + -4y = -36

Multiply 9 * 9
81 + -4y = -36

Solving
81 + -4y = -36

Solving for variable 'y'.

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

Add '-81' to each side of the equation.
81 + -81 + -4y = -36 + -81

Combine like terms: 81 + -81 = 0
0 + -4y = -36 + -81
-4y = -36 + -81

Combine like terms: -36 + -81 = -117
-4y = -117

Divide each side by '-4'.
y = 29.25

Simplifying
y = 29.25

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