Question

50 r 3r 20 I need this by tomorrow morning plz!!!!!

Answer 1

50 + r = 3r + 20
Rearrange on either sides so it is easy to isolate

50 - 20 = 3r - r
30 = 2r

Divide by 2 to isolate r and to find its value


`(30)/(2)` =
`(2r)/(2)`
2 and 2 cancels out

15 = r

Check, if you want :)
50 + (15) = 3(15) + 20
65 = 45 + 20
65 = 65