Question

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
3x + 11y = 34.5

9x – 7y = -16.5

Answer 1

Multiply all the top line by -3 and then add the top line with bottom line. Let me know if you want me to show you how (:

Answer 2

ok

Answer 3

i did i got x=2 but when i plug it in i get the wrong answer

Answer 4

just show me please don't know were i went wrong

Answer 5

Make sure my calculations are right, Haha (:

Answer 6

ok thanks i was doing it all wrong so is there mutlp ways of doing this

Answer 7

so y would be 1.5

Answer 8

It doesn't matter which one you cancel out. In this case, canceling the x is easier since they have a like multiple (: Like for 11 & 7 you'd have to multiply the top by 7 and the bottom by 11. Wayyy long.

Answer 9

ok thats what i was trying to do so y=1.5

Answer 10

x=1/2 & y=3

Answer 11

So x=.5 not 1.5 and y=3

Answer 12

ok thanks

Answer 13

can you show me how to use x

Answer 14

You just plug the y (3) into the 3x + 11y = 34.5 as 3x + 11(3) = 34.5 and just solve it as a simple equation trying to find x (:

Answer 15

ok i figured it out thanks