She distributed first

Then removed the denominator

X = h/3(a+b)
3X(a+b) = h
a+b = h/3X
a = (h/3X)-b

there you go

oh hey it's quicker

same answer tho

wait I see where you went wrong

moving (a+B) to the Left hand side

did you divide

you didn't

I multiplies both sides by that value

h(a+b) needs to be moved to the LHS by dividing h(a+b) to remove (a+b)

you would be multiplying (a+b) * (a+B)

which would not remove it from the right hand side

divide instead

try again

if I divided I would get
X/3(a+b) = h/(3(a+b))^2

no that's what you'd get if you multiplied

try again

please do it on paper

so you can see what you're doing better

I see it fine

and it's wrong

ok

well il stay wrong i guess

@The Gwench what's that equation for

it's a simple solution

but has many tempting wrong answers

may I ask what math course you are in

None

you're done with math?

@mineyful you need to not trool with your missing parentheses

i'm not missing any

there's no need for them

after I remove their coefficient

order of operations

I can do it with the parenthesis and still get the right answer if you want

multiplication first

you should know this