4y+5y=20-y

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


Simplifying
4y + 5y = 20 + -1y

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

Solving
9y = 20 + -1y

Solving for variable 'y'.

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

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

Combine like terms: 9y + y = 10y
10y = 20 + -1y + y

Combine like terms: -1y + y = 0
10y = 20 + 0
10y = 20

Divide each side by '10'.
y = 2

Simplifying
y = 2

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