7y-8=5y+4

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Solution for 7y-8=5y+4 equation:


Simplifying
7y + -8 = 5y + 4

Reorder the terms:
-8 + 7y = 5y + 4

Reorder the terms:
-8 + 7y = 4 + 5y

Solving
-8 + 7y = 4 + 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.
-8 + 7y + -5y = 4 + 5y + -5y

Combine like terms: 7y + -5y = 2y
-8 + 2y = 4 + 5y + -5y

Combine like terms: 5y + -5y = 0
-8 + 2y = 4 + 0
-8 + 2y = 4

Add '8' to each side of the equation.
-8 + 8 + 2y = 4 + 8

Combine like terms: -8 + 8 = 0
0 + 2y = 4 + 8
2y = 4 + 8

Combine like terms: 4 + 8 = 12
2y = 12

Divide each side by '2'.
y = 6

Simplifying
y = 6

 

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