9x-3y=31 One equation in a system of two linear equations is shown above. The graph of the second equation in the xy-plane has a slope of the 4. How many ordered pairs (x, y) satisfy both equations?

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

sorry i just need to anwers this to get points

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated