Question 314431
x+(2+y)=8

or y=8-2-x

or y=6-x  , means there are infinite solution of x and y. Such as

For Say , x= -2,-1,0,1,2.................

y = 6-x= 6-(-2)=6+2=8
y = 6-x= 6-(-1)=6+1=7
y = 6-x= 6-(0)=6-0=6
y = 6-x= 6-(1)=6-1=5
y = 6-x= 6-(2)=6-2=4 etc.

One can put the values on a graph paper and extend the stariaght line as a universal solution of the equation.

{{{ graph( 300, 200, -10, 10, -10, 10, 6-x) }}}