Question

If 4x+y=34 and x+4y=16 then what is the value of x+y

Answer 1

Answer:

Hope this answer helps you.

Answer 2

Answer:

10

Step-by-step explanation:

Cause $\left \{ {{4x+y=34} \atop {x+4y=16}} \right.$

so (4x+y)+(x+4y)=34+16

⇒(4x+x)+(4y+y)=50

⇒5x+5y=50

⇒5*(x+y)=50

⇒x+y=50/5=10