3y+9=6y-4y

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Solution for 3y+9=6y-4y equation:


Simplifying
3y + 9 = 6y + -4y

Reorder the terms:
9 + 3y = 6y + -4y

Combine like terms: 6y + -4y = 2y
9 + 3y = 2y

Solving
9 + 3y = 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.
9 + 3y + -2y = 2y + -2y

Combine like terms: 3y + -2y = 1y
9 + 1y = 2y + -2y

Combine like terms: 2y + -2y = 0
9 + 1y = 0

Add '-9' to each side of the equation.
9 + -9 + 1y = 0 + -9

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

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

Divide each side by '1'.
y = -9

Simplifying
y = -9

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