Question

S = lw + wh + hl
How do I solve for h?

Answer 1

in terms of S, l, and w?

Answer 2

first isolate the terms containing h
by subtracting lw from both sides
can you do that?

Answer 3

How would that look? I've never had to solve an equation with nothing but letters. I'm confused.

Answer 4

s=lw+(w+l)h
(w+l)h= s-lw
h= (s-lw)/(w+l).....

Answer 5

ok - its similar method
subtracting lw:
S - lw = wh + hl

now take the h out on RHS

S - lw = h(w + l)

Answer 6

Ohhh, I see. So what do I do with that? Is that it?

Answer 7

no - you need to isolate h
h(w+l)
----- = h right?
(w+l)

so dividing by (w+l) gives us h
so what do we do to LHS? (left-hand side)

Answer 8

don't forget - an equation is like a chemical balance - whatever you do to one side you must do to the other to keep the equality

Answer 9

S - lw
----- = h
(w+l)

Answer 10

Right?

Answer 11

yes - right

Answer 12

Ah, I see. Thank you very much!

Answer 13

yw