Question

The sum of two numbers is 209. If one number is 7 less than two times the other. Then find the two number​

Answer 1

Answer:

First number is 137, the second number is 72.

Step-by-step explanation:

Let us assume that the numbers are a and b.

That would give us the equation a+b=209

If one of the numbers, let us take a, is 7 less than two times the other (b in this case) we can rewrite is as a=2b-7.

Now we substitute a with 2b-7 and that gives us;

2b-7+b=209

We sum up the like terms and we get 3b-7=209.

We work further;

3b=209+7

3b=216

b=216/3

b=72

So now we know the b, we can calculate a with the original givens which gives us;

a+72=209

a=137.

I hope it was clear.