Question

Which ordered pair is a solution to this equation?

3x + 7y = 13

(13, 2)
(2, 1)
(4, 1)
(3, 1)

Answer 1

any idea ?

Answer 2

there are these choices just substitute the x value in place of x and the y value in place of y and see how you get 13

Answer 3

ok ?

Answer 4

for example the first one

(13,2)

3x +7y =13

3*13 +7*2 = 13 this is true ?

Answer 5

please collaborate - i like help you understanding