5x plus y equals 17 2x plus y equals 8?

Answer 1

That's nice. Thanks for stopping by.

While you're here, would you like to know what 'x' and 'y' are ?
You can find them like this:

5x + y = 17
2x + y = 8

Subtract the second equation from the first one:

3x = 9

x = 3

Multiply both sides of the second original equation by 2.5,
and write it under the first one:

5x + y = 17
5x + 2.5y = 20

Subtract the first of these from the second one:

1.5y = 3

y = 2