[tex] Equation\ 1--- x+4y=3 \\ \\ Equation\ 2---2x-3y=17 \\ \\ x=3-4y \\ \\ \\ \\ Substitude\ x\ into\ equation\ 2, \\ \\ 2(3-4y)-3y=17 \\ \\ 6-8y-3y=17 \\ \\ -11y=11 \\ \\ y=-1 [/tex] [tex] Substitude\ y\ into\ equation\ 1, \\ \\ x+4(-1)=3 \\ \\ x=3+4 \\ \\ x=7 [/tex]
