7y-8=3y-20

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Solution for 7y-8=3y-20 equation:


Simplifying
7y + -8 = 3y + -20

Reorder the terms:
-8 + 7y = 3y + -20

Reorder the terms:
-8 + 7y = -20 + 3y

Solving
-8 + 7y = -20 + 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.
-8 + 7y + -3y = -20 + 3y + -3y

Combine like terms: 7y + -3y = 4y
-8 + 4y = -20 + 3y + -3y

Combine like terms: 3y + -3y = 0
-8 + 4y = -20 + 0
-8 + 4y = -20

Add '8' to each side of the equation.
-8 + 8 + 4y = -20 + 8

Combine like terms: -8 + 8 = 0
0 + 4y = -20 + 8
4y = -20 + 8

Combine like terms: -20 + 8 = -12
4y = -12

Divide each side by '4'.
y = -3

Simplifying
y = -3

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