75=30y+15

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Solution for 75=30y+15 equation:


Simplifying
75 = 30y + 15

Reorder the terms:
75 = 15 + 30y

Solving
75 = 15 + 30y

Solving for variable 'y'.

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

Add '-30y' to each side of the equation.
75 + -30y = 15 + 30y + -30y

Combine like terms: 30y + -30y = 0
75 + -30y = 15 + 0
75 + -30y = 15

Add '-75' to each side of the equation.
75 + -75 + -30y = 15 + -75

Combine like terms: 75 + -75 = 0
0 + -30y = 15 + -75
-30y = 15 + -75

Combine like terms: 15 + -75 = -60
-30y = -60

Divide each side by '-30'.
y = 2

Simplifying
y = 2

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