Aschool has 90 children. during the day each child attends 4 classes. each class has 15 children and 1 teacher. during the day each teacher teaches 3 classes. what is the smallest number of teachers the school can have.

step-by-step explan mxfcg'k; uafwgzfgjhklhgation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: