4y+20=5y+9

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Solution for 4y+20=5y+9 equation: 


Simplifying
4y + 20 = 5y + 9

Reorder the terms:
20 + 4y = 5y + 9

Reorder the terms:
20 + 4y = 9 + 5y

Solving
20 + 4y = 9 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
20 + 4y + -5y = 9 + 5y + -5y

Combine like terms: 4y + -5y = -1y
20 + -1y = 9 + 5y + -5y

Combine like terms: 5y + -5y = 0
20 + -1y = 9 + 0
20 + -1y = 9

Add '-20' to each side of the equation.
20 + -20 + -1y = 9 + -20

Combine like terms: 20 + -20 = 0
0 + -1y = 9 + -20
-1y = 9 + -20

Combine like terms: 9 + -20 = -11
-1y = -11

Divide each side by '-1'.
y = 11

Simplifying
y = 11

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