Question

Solve this equation by using the look inside method to rewrite the problem -81 = 3(5 - 4r)

Answer 1

－81＝3(5－4r)
27＝－(5－4r)
27＝－5＋4r
－4r＝－5－27
－4r＝－32
r＝8

Hope my answer helped u :)