One tool that can be used is Direct variation word problems.
Years on market
OMG it made my work process so quick and easy! I don't have to do anything expect just show the problem and they solved it for me, there's a lot of add's but for all of the correct answers and help it offers its definitely worth it. Didn't help at all Edit, i LOVE THIS APP SO I GIVE THIS APP 5 âââââ.
The app still gives the correct answer, i am still recovering from the overwhelm. Overall I'll give it 5/5 in every thing, thanks again math app. Instant 5 star, definitely worth subscribing for the step-by-step process and also to support the developers.