Question

help

Answer 1

Please decide which you'd rather eliminate first: x or y. What we do next depends upon your choice.

Answer 2

make sure to multiply by 10 first to make is less annoying

Answer 3

x=5

Answer 4

i multiplied by 5 lol

Answer 5

i would suggest starting with \[13x+15y=5\\
4x+3y=8\]

Answer 6

@vshiroky : Multiplying the 2nd equation by 5 makes sense, but multiplying the second equation by -5 would make even more sense. Can you say why?

Answer 7

(5,-4)

Answer 8

you win again

Answer 9

Either approach would work fine: mine or that of satellite73.

Happy that you've demonstrated that you know how to solve this system by addition and subtraction.