2y-4=y+5

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Solution for 2y-4=y+5 equation:


Simplifying
2y + -4 = y + 5

Reorder the terms:
-4 + 2y = y + 5

Reorder the terms:
-4 + 2y = 5 + y

Solving
-4 + 2y = 5 + 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.
-4 + 2y + -1y = 5 + y + -1y

Combine like terms: 2y + -1y = 1y
-4 + 1y = 5 + y + -1y

Combine like terms: y + -1y = 0
-4 + 1y = 5 + 0
-4 + 1y = 5

Add '4' to each side of the equation.
-4 + 4 + 1y = 5 + 4

Combine like terms: -4 + 4 = 0
0 + 1y = 5 + 4
1y = 5 + 4

Combine like terms: 5 + 4 = 9
1y = 9

Divide each side by '1'.
y = 9

Simplifying
y = 9

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