Question

identify the equations that are conditionally true:
4y+5y=9y



pls give the answer with explanation friends...... ​

Answer 1

Answer:

ya ....The equation is true.. 4y+5y=9y .because if the coefficient of both the numbers are same then they can be added like y+y or x+x ..And if both coefficient s are not same then they can't be added e.g.x+y.... ok. Friend this was the reason

Answer 2

Answer:

Yes,the equation is true because we can add the like terms. The derivation is in

4y+5y we can take y as common by the distributive law.so 4y+5y=y(4+5)=y×9=9y

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