2y-9=y+4

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


Simplifying
2y + -9 = y + 4

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

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

Solving
-9 + 2y = 4 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-9 + 2y + -1y = 4 + y + -1y

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

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

Add '9' to each side of the equation.
-9 + 9 + 1y = 4 + 9

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

Combine like terms: 4 + 9 = 13
1y = 13

Divide each side by '1'.
y = 13

Simplifying
y = 13

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