3y+90=8y+15

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Solution for 3y+90=8y+15 equation:


Simplifying
3y + 90 = 8y + 15

Reorder the terms:
90 + 3y = 8y + 15

Reorder the terms:
90 + 3y = 15 + 8y

Solving
90 + 3y = 15 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
90 + 3y + -8y = 15 + 8y + -8y

Combine like terms: 3y + -8y = -5y
90 + -5y = 15 + 8y + -8y

Combine like terms: 8y + -8y = 0
90 + -5y = 15 + 0
90 + -5y = 15

Add '-90' to each side of the equation.
90 + -90 + -5y = 15 + -90

Combine like terms: 90 + -90 = 0
0 + -5y = 15 + -90
-5y = 15 + -90

Combine like terms: 15 + -90 = -75
-5y = -75

Divide each side by '-5'.
y = 15

Simplifying
y = 15

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