Solve the following system using the substitution method.

x + 3y = –5
5x + 6y = –19

a. negative three, negative two–thirds
b. negative three, two–thirds
c. three, negative two–thirds
d. three, two–thirds

Question

Solve the following system using the substitution method.

x + 3y = –5
5x + 6y = –19

a. negative three, negative two–thirds	
b. negative three, two–thirds
c. three, negative two–thirds
d. three, two–thirds

anonymous · Answer

from the first equation what is x equal to?

anonymous · Answer

what do you mean?

anonymous · Answer

solve the first equation for x

anonymous · Answer

You get x from the first one by getting 3y on the other side with changed sign. You then plug what's on the right side into the second equation and solve for x. Then plug the x in any of the original equations and you get y.