Question

Help! I don’t understand 7 & 8!

Answer 1

7., v =lwh

you divide both sides by lh to get w by itself

Answer 2

For both of these, we simply need to make w and x the subject.

7. V = lwh

Divide lh on both sides to get w by itself,


`(V)/(lh)` = w
w =
`(V)/(lh)`

8. Ax + By = C
Ax = C - By

Divide A on both sides to get x by itself

x =
`(C - By)/(A)`

Hope this helped! Ask me if there's any part of the working you don't understand :)