Question

Solve using an appropriate method.
5x -9y = 7,
7y -3x = 5

Answer 1

5x -9y = 7
7y -3x = 5

we can get the same number of x's by multiplying the second equation by 5 and the first equation by 3

this gives
15x-27y=21
-15x+35y=25

now we can add them together to get rid of the x terms
this gives
15x+-15x which =0
-27y+35y=8y
21+25=46
our new equation is
8y=46
y=46/8

sub y into one of the original equations to get x

Answer 2

Thanks! The method appears to be the substitution method.
I had to take a break and prepare a snack for the family. Thanks again:)