Answer:
one solution : (7 , -2)
Step-by-step explanation:
hello :
x+ 3y =1 ...(*)
–4x – 7y = -14...(**)
by (*) : x = 1-3y
put this value in (**) : -4(1-3y)-7y = -14
-4+12y-7y = -14
5y=-10
y= - 2 but : x = 1-3y so : x= 1-3(-2) =7
one solution : (7 , -2)
