Which method would be the most efficient to solve the system? (1 point)
1
y= -x
2x + 3y = 28
graphing
substitution
elimination
●distributive
3 answers
elimination
I prefer substitution, since you have y = -x already to use.
That is a valid approach too! Substitution would also work well in this case since you can substitute y = -x into the second equation and get 2x + 3(-x) = 28. Then you can solve for x and plug the value back into one of the original equations to find y.
1 answer