Question

And again.

Answer 1

any ideas where the error might be?

Answer 2

2?

Answer 3

line 2 is valid

Answer 4

10 - 8 = 2

but -10 - 8, is that -2?

Answer 5

yeah...

Answer 6

you sure? if you're 10 dollars in debt and you spend/borrow 8 more dollars, how much are you in debt now?

Answer 7

10 IOUs + 8 IOUs = ____ IOUs

Answer 8

oh wait i thought you said -10-(-8)

Answer 9

no, just -10 - 8

Answer 10

-18

Answer 11

if it were that, then it would be -2

Answer 12

yep, -10 - 8 = -18

Answer 13

so that means there's an error in line 4

Answer 14

ok thank you i get it now

Answer 15

oh i meant line 5, my bad lol

Answer 16

line 5 *should* be

6x = -18

Answer 17

ok thanks