7y+4=5y-8

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


Simplifying
7y + 4 = 5y + -8

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

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

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

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

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

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

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

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

Divide each side by '2'.
y = -6

Simplifying
y = -6

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