3y+9-4y=2

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Solution for 3y+9-4y=2 equation: 


Simplifying
3y + 9 + -4y = 2

Reorder the terms:
9 + 3y + -4y = 2

Combine like terms: 3y + -4y = -1y
9 + -1y = 2

Solving
9 + -1y = 2

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + -1y = 2 + -9

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

Combine like terms: 2 + -9 = -7
-1y = -7

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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