Yes. The dependent variable depends on the independent variable.
X+y=-1/3
x-y=18
solve the system of equation:
equation 1 + equation 2: 2x=17&2/3=16&5/3
x=8&5/6
y=-1/3 -8&5/6=-8&7/6=-9&1/6
x=
3 over 50
= 3/50 Multiply top and bottom by 2
= (3/50)*(2/2) = 6/100
= 0.06