4y+9=3y+12

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Solution for 4y+9=3y+12 equation:


Simplifying
4y + 9 = 3y + 12

Reorder the terms:
9 + 4y = 3y + 12

Reorder the terms:
9 + 4y = 12 + 3y

Solving
9 + 4y = 12 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
9 + 4y + -3y = 12 + 3y + -3y

Combine like terms: 4y + -3y = 1y
9 + 1y = 12 + 3y + -3y

Combine like terms: 3y + -3y = 0
9 + 1y = 12 + 0
9 + 1y = 12

Add '-9' to each side of the equation.
9 + -9 + 1y = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1y = 12 + -9
1y = 12 + -9

Combine like terms: 12 + -9 = 3
1y = 3

Divide each side by '1'.
y = 3

Simplifying
y = 3

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