12y+7=9y+28

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Solution for 12y+7=9y+28 equation:


Simplifying
12y + 7 = 9y + 28

Reorder the terms:
7 + 12y = 9y + 28

Reorder the terms:
7 + 12y = 28 + 9y

Solving
7 + 12y = 28 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
7 + 12y + -9y = 28 + 9y + -9y

Combine like terms: 12y + -9y = 3y
7 + 3y = 28 + 9y + -9y

Combine like terms: 9y + -9y = 0
7 + 3y = 28 + 0
7 + 3y = 28

Add '-7' to each side of the equation.
7 + -7 + 3y = 28 + -7

Combine like terms: 7 + -7 = 0
0 + 3y = 28 + -7
3y = 28 + -7

Combine like terms: 28 + -7 = 21
3y = 21

Divide each side by '3'.
y = 7

Simplifying
y = 7

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