Question

2x+7y=1

y=4x−8
​

Is (4,8)(4,8)left parenthesis, 4, comma, 8, right parenthesis a solution of the system?
Choose 1 answer:

Answer 1

(1,9;(-0,4))

Explanation:

7(4x-8)+2x=1

28x-56+2x=1

28x+2x=1+56

30x=57|:30

x=1,9

y=4×1,9-8

y=-0,4