Question

Which is a solution of the equation?

2x – y = 5

Answer 1

A.
(2, –1)

B.
(3, –1)

C.
(1, 2)

D.
7

Answer 2

Let's check to see if choice C is a solution or not

Answer 3

To do this, we simply plug x = 1 and y = 2 into 2x – y = 5. This is because (1,2) is of the form (x,y)

2x – y = 5

2(1) – 2 = 5 ... plug in x = 1, y = 2

2 - 2 = 5

0 = 5 ... this is FALSE, so (1,2) is NOT a solution to 2x – y = 5

Answer 4

Using these steps, is (3, –1) a solution?

Answer 5

thanks dude but thats confusing

Answer 6

which part doesn't make sense?

Answer 7

mostly all of it

Answer 8

do you see how I got x = 1, y = 2 from the point (1,2) ?

Answer 9

never mind I understand it had to clean my glasses

Answer 10

I*
not it