How do you interpret this?
if x = 2 c + 1, y = -c +3 and z = 2x + 5y - 4, write z in terms of c

Question

bibby · Answer

plug in the given data and combine t he like terms
z is already isolated on the left side of the equation so we don't have to do anything with it

mpj4 · Answer

Can you explain what write z in terms of c more clearly? I didn't quite get that.

bibby · Answer

what I'd do is:
x = 2c + 1
y = -c +3
z = 2x + 5y - 4

z = 2(2c+1) + 5(-c+3) - 4

mpj4 · Answer

Ah, thank you.

bibby · Answer

distribute the 2 and 5 and combine like terms

mpj4 · Answer

I don't want you to waste any more of your time, the equation was enough. It got the right answer.

bibby · Answer

it's not a waste of time, I'm just watching a documentary and pissing away time on the internet. 

this is what I'm here for

mpj4 · Answer

Haha! xD

bibby · Answer

so yeah. take your time working that stuff out and I'll check your work

mpj4 · Answer

z = -c + 13

bibby · Answer

$z = 2(2c+1) + 5(-c+3) - 4$
$z = 4c+2 + -5c+15 - 4$
$z = 2 -c+15 - 4$
$z = -c+13$

bibby · Answer

noice

mpj4 · Answer

Alright, I'll be going. Thanks a lot man.

bibby · Answer

have a good day/afternoon/whatever brah

mpj4 · Answer

Ditto