Question

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 81. isolate x in the first equation:2. substitute the value for x into the second equation:3. solve for y:4. substitute y into either original equation:5. write the solution as an ordered pair:x = 7 – 3y2(7 – 3y) + 4y = 814 – 6y + 4y = 814 – 2y = 8–2y = –6y = 3x + 3(3) = 7(,

Answer 1

Answer:

-2,3

Step-by-step explanation:

i guessed and got it right

Answer 2

Answer:

2.3

Step-by-step explanation:

x + 3y = 7 and 2x + 4y = 81. isolate x in the first equation:2. substitute the value for x into the second equation:3. solve for y:4. substitute y into either original equation:5. write the solution as an ordered pair:x = 7 – 3y2(7 – 3y) + 4y = 814 – 6y + 4y = 814 – 2y = 8–2y = –6y = 3x + 3(3) = 7(,