2y+3y=21

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Solution for 2y+3y=21 equation: 


Simplifying
2y + 3y = 21

Combine like terms: 2y + 3y = 5y
5y = 21

Solving
5y = 21

Solving for variable 'y'.

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

Divide each side by '5'.
y = 4.2

Simplifying
y = 4.2

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