Question

solve the system of equations by elimination
4x-2y=0
3x+3y=9

Answer 1

multiply the first equation by 3, the second one by 2, then add the equations...
what do you get as a result?

Answer 2

there are many ways you can do elimination but with what i described, i eliminated the "y" variable....

Answer 3

12x-y=0
12x+12y=9

Answer 4

3(4x-2y=0)
-4(3x+3y=9)
then multiply across and you get
12x-6y=0
-12x-12y=-36 and do the elimination (:

Answer 5

notice in @BryanaGarcia 's elimination, she eliminated the "x" variable....

Answer 6

yea. so what would be left is -18y=-36

Answer 7

yep... then solve for x...
in my method, you'll get the x first then you can solve for y...

Answer 8

y=18