Question

x+y=170,y+z=130,x+2y+z=300 then what is the value of y​

Answer 1

Answer:

Step-by-step explanation:

X+2y+z=300

x+y+y+z=300

X+y+y+z=170+130

(x+y)+(y+z)=170+130

X+y-y-z=170-130

X-z=50...........1

X+2y+z=300

2y=300-x-z

2y=250

Y=125