Question

If 2x + 3y – 7 = 0 and 9x – 2y + 8 = 0
then find x and y

Answer 1

2x + 3y – 7 = 0---------------(1)

9x – 2y + 8 = 0--------------(2)

(1)*2+(2)*3=>

4x+6y-14+27x-6y+24=0

31x+10=0

x= -10/31

now,

(1)=>

3y=7-2x

3y=7-2(-10/31)

3y=7+20/31

3y=(217+20)/31

3y=237/31

y=237/(31*3)

y=237/93

y=2.548