9+4y=81

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Solution for 9+4y=81 equation: 


Simplifying
9 + 4y = 81

Solving
9 + 4y = 81

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 = 81 + -9

Combine like terms: 9 + -9 = 0
0 + 4y = 81 + -9
4y = 81 + -9

Combine like terms: 81 + -9 = 72
4y = 72

Divide each side by '4'.
y = 18

Simplifying
y = 18

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