Question

If 2x+3y+4=0 and x-5y=11
. then x=?

Answer 1

2x+3y+4=0 ....1
x-5y=11 .....2
from .....2

x=11+5y put it in ....1
=>2(11+5y)+3y+4=0
22+10y+3y+4=0
13y=-26
y=-2
=>x=11+5(-2)
x=1