Question

2x-y=9
3x-4y=-24 Find exact solutions using any algebra method

Answer 1

multiply the first equation by -4 to get: -8x + 4y = -36
now take this equation and add it to the second equation.
that should eliminate the y variable and leave you 1 equation in 1 variable (x) that you can solve...

Answer 2

ok

Answer 3

so i take -8x=-36
3x=-24

Answer 4

how does x = 5?

Answer 5

dont you divide 11/-60

Answer 6

technically -60/11 sooo I got -5.45

Answer 7

:) exactly! sorry just did that piece of it wrong! glad you checked hun!

Answer 8

yes :) plug that in for x and solve for y