Ray is 23 years older than his sister carol. in 20 years he will be twice as old as carol. how old is each of them now?

 r = c+23 

r+20 = 2(c+20) 
(c+23)+20 = 2(c+20) 
c+43 = 2c+40 
c = 3 : r = c+23 = 26

Carol is 3 years of age, and Ray is 26 years of age.

Ray is going to be 86 and Carol is 43.
23+20=43 x 2=86 
86/2=43

You would need a laid out graph for this but could you provide a picture of just a graph? i can give stepssolve for y.subtract 4xdivide by -1 (opposites)graph slope intercept formcheck each point to see if it’s on the graph

Its d so thats how it would would back from 1.0 form three four two