-3 (x + 4) + 15 = 6 – 4x plz help... i need help fast plz show work

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Can someone answer this question? : )

If you are just building your payment history, how many points from a perfect score will you possibly miss?