Question

(1st equation x-y=4) (2nd equation x^2+y^2=106)​

Answer 1

Answer:

x+y=26

Step-by-step explanation:

x-y=4 (a)

(x+y)(x-y)=106 (b)

Divided equation (a) to (b)

then

(x+y)(x-y)/(x-y)=106/4

x+y = 26

answer