2y-9=4y+9

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


Simplifying
2y + -9 = 4y + 9

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

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

Solving
-9 + 2y = 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.
-9 + 2y + -4y = 9 + 4y + -4y

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

Combine like terms: 4y + -4y = 0
-9 + -2y = 9 + 0
-9 + -2y = 9

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

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

Combine like terms: 9 + 9 = 18
-2y = 18

Divide each side by '-2'.
y = -9

Simplifying
y = -9

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