multiply and distribute 24r-15=28+24r
combine terms 24r+13=24r
get r on one side and numbers on other side so then subtract 24r and then it looks like this 13=0
there is no real number that makes this solution true
i know my answer is right and it was fun working it out! thanx. it is a real number! just a really irrational one.
參考: my brain. can i just add that i am 12 and worked this out with no help! ok, i happen to be really smart, but adults should be able to figure out that you can't just say: "it has no answer".