7-9y=40

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Solution for 7-9y=40 equation: 


Simplifying
7 + -9y = 40

Solving
7 + -9y = 40

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + -9y = 40 + -7

Combine like terms: 7 + -7 = 0
0 + -9y = 40 + -7
-9y = 40 + -7

Combine like terms: 40 + -7 = 33
-9y = 33

Divide each side by '-9'.
y = -3.666666667

Simplifying
y = -3.666666667

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