8y-20=3y+30-15

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Solution for 8y-20=3y+30-15 equation:


Simplifying
8y + -20 = 3y + 30 + -15

Reorder the terms:
-20 + 8y = 3y + 30 + -15

Reorder the terms:
-20 + 8y = 30 + -15 + 3y

Combine like terms: 30 + -15 = 15
-20 + 8y = 15 + 3y

Solving
-20 + 8y = 15 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-20 + 8y + -3y = 15 + 3y + -3y

Combine like terms: 8y + -3y = 5y
-20 + 5y = 15 + 3y + -3y

Combine like terms: 3y + -3y = 0
-20 + 5y = 15 + 0
-20 + 5y = 15

Add '20' to each side of the equation.
-20 + 20 + 5y = 15 + 20

Combine like terms: -20 + 20 = 0
0 + 5y = 15 + 20
5y = 15 + 20

Combine like terms: 15 + 20 = 35
5y = 35

Divide each side by '5'.
y = 7

Simplifying
y = 7

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