3y-18=4y+9

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Solution for 3y-18=4y+9 equation:


Simplifying
3y + -18 = 4y + 9

Reorder the terms:
-18 + 3y = 4y + 9

Reorder the terms:
-18 + 3y = 9 + 4y

Solving
-18 + 3y = 9 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-18 + 3y + -4y = 9 + 4y + -4y

Combine like terms: 3y + -4y = -1y
-18 + -1y = 9 + 4y + -4y

Combine like terms: 4y + -4y = 0
-18 + -1y = 9 + 0
-18 + -1y = 9

Add '18' to each side of the equation.
-18 + 18 + -1y = 9 + 18

Combine like terms: -18 + 18 = 0
0 + -1y = 9 + 18
-1y = 9 + 18

Combine like terms: 9 + 18 = 27
-1y = 27

Divide each side by '-1'.
y = -27

Simplifying
y = -27

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