Solve the following equations

Question

x 7y=2

x=4-7y

Answer 1

Princess

Perhaps I'm being very stupid this morning, but I can't get your problem to make sense.

If:

1. x+7y=2 and

2. x=4-7y

Then substituting into equation 1:

(4-7y)+7y=2

So: 4-7y+7y=2

Cancelling out the 7y's gives

4=2

That's obviously not right!

Can I please ask you to check the equations are stated correctly, and then contact me if not so I can try to give you a correct answer.

Tom

Answer 2

What is supposed to be between the x and 7y in the first equation?