Question

Choose ALL of the ordered pairs that are solutions to the equation.

5y = 2x - 7
a) (6, 0)
b) ( 7, 21)
c) (8, 18)
d) ( -3, 4)

Answer 1

None of them

Explanation:

a: 5*0=2*6-7 False

b: 5*21=2*7-7 False

c: 5*18=2*8-7 False

d: 5*4=2*-3-7 False

Answer 2

b) ( 7, 21)

Explanation:

5(7)=2(21)-7

35=42-7

35=35