75-3(y)=90

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Solution for 75-3(y)=90 equation: 


Simplifying
75 + -3(y) = 90

Solving
75 + -3y = 90

Solving for variable 'y'.

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

Add '-75' to each side of the equation.
75 + -75 + -3y = 90 + -75

Combine like terms: 75 + -75 = 0
0 + -3y = 90 + -75
-3y = 90 + -75

Combine like terms: 90 + -75 = 15
-3y = 15

Divide each side by '-3'.
y = -5

Simplifying
y = -5

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