28=8y+12-7y

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Solution for 28=8y+12-7y equation:


Simplifying
28 = 8y + 12 + -7y

Reorder the terms:
28 = 12 + 8y + -7y

Combine like terms: 8y + -7y = 1y
28 = 12 + 1y

Solving
28 = 12 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
28 + -1y = 12 + 1y + -1y

Combine like terms: 1y + -1y = 0
28 + -1y = 12 + 0
28 + -1y = 12

Add '-28' to each side of the equation.
28 + -28 + -1y = 12 + -28

Combine like terms: 28 + -28 = 0
0 + -1y = 12 + -28
-1y = 12 + -28

Combine like terms: 12 + -28 = -16
-1y = -16

Divide each side by '-1'.
y = 16

Simplifying
y = 16

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