-3y+9=-90

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Solution for -3y+9=-90 equation: 


Simplifying
-3y + 9 = -90

Reorder the terms:
9 + -3y = -90

Solving
9 + -3y = -90

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 + -3y = -90 + -9

Combine like terms: 9 + -9 = 0
0 + -3y = -90 + -9
-3y = -90 + -9

Combine like terms: -90 + -9 = -99
-3y = -99

Divide each side by '-3'.
y = 33

Simplifying
y = 33

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