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2 years ago

two times a number added to another number is 20. three times the first number minus the other number is 20. find the numbers

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

8 0

Answer:

y=7

Step-by-step explanation:

We have two numbers,

. We know two things about them:

−

Let's add these two equations together which will cancel the

We can now substitute in the

value into one of the original equations (I'll do both) to get to

(

)

−

(

)

−

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