-7y-20=10-8y-15

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Solution for -7y-20=10-8y-15 equation:


Simplifying
-7y + -20 = 10 + -8y + -15

Reorder the terms:
-20 + -7y = 10 + -8y + -15

Reorder the terms:
-20 + -7y = 10 + -15 + -8y

Combine like terms: 10 + -15 = -5
-20 + -7y = -5 + -8y

Solving
-20 + -7y = -5 + -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.
-20 + -7y + 8y = -5 + -8y + 8y

Combine like terms: -7y + 8y = 1y
-20 + 1y = -5 + -8y + 8y

Combine like terms: -8y + 8y = 0
-20 + 1y = -5 + 0
-20 + 1y = -5

Add '20' to each side of the equation.
-20 + 20 + 1y = -5 + 20

Combine like terms: -20 + 20 = 0
0 + 1y = -5 + 20
1y = -5 + 20

Combine like terms: -5 + 20 = 15
1y = 15

Divide each side by '1'.
y = 15

Simplifying
y = 15

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