10y+20=5y-15

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Solution for 10y+20=5y-15 equation: 


Simplifying
10y + 20 = 5y + -15

Reorder the terms:
20 + 10y = 5y + -15

Reorder the terms:
20 + 10y = -15 + 5y

Solving
20 + 10y = -15 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
20 + 10y + -5y = -15 + 5y + -5y

Combine like terms: 10y + -5y = 5y
20 + 5y = -15 + 5y + -5y

Combine like terms: 5y + -5y = 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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