Question

xy+x=9,y+1=3,х=?????

Answer 1

ху+у=9
у+1=3
у=3-1
у=2
2х+2=9
2х=9-2
2х=7
х=7/2
х=3,5

Answer 2

хy+x=9
y+1=3
y=2
2x+x=9
3x=9
x=3