3y+7=9y+12

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Solution for 3y+7=9y+12 equation:


Simplifying
3y + 7 = 9y + 12

Reorder the terms:
7 + 3y = 9y + 12

Reorder the terms:
7 + 3y = 12 + 9y

Solving
7 + 3y = 12 + 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 + 3y + -9y = 12 + 9y + -9y

Combine like terms: 3y + -9y = -6y
7 + -6y = 12 + 9y + -9y

Combine like terms: 9y + -9y = 0
7 + -6y = 12 + 0
7 + -6y = 12

Add '-7' to each side of the equation.
7 + -7 + -6y = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -6y = 12 + -7
-6y = 12 + -7

Combine like terms: 12 + -7 = 5
-6y = 5

Divide each side by '-6'.
y = -0.8333333333

Simplifying
y = -0.8333333333

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