12=5(y+4)-7y

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Solution for 12=5(y+4)-7y equation:


Simplifying
12 = 5(y + 4) + -7y

Reorder the terms:
12 = 5(4 + y) + -7y
12 = (4 * 5 + y * 5) + -7y
12 = (20 + 5y) + -7y

Combine like terms: 5y + -7y = -2y
12 = 20 + -2y

Solving
12 = 20 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
12 + 2y = 20 + -2y + 2y

Combine like terms: -2y + 2y = 0
12 + 2y = 20 + 0
12 + 2y = 20

Add '-12' to each side of the equation.
12 + -12 + 2y = 20 + -12

Combine like terms: 12 + -12 = 0
0 + 2y = 20 + -12
2y = 20 + -12

Combine like terms: 20 + -12 = 8
2y = 8

Divide each side by '2'.
y = 4

Simplifying
y = 4

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