Question

Solve r plus negative three equals negative five for r.

Answer 1

r + -3 = -5 ?

Answer 2

try adding +3 to both sides of the equation

Answer 3

r + (-3) = -5
or, r = ??

Answer 4

yes

Answer 5

write +3 on both sides of the equation
then simplify

Answer 6

@heidih what you got after adding +3 to both sides

Answer 7

is negative and negative positive

Answer 8

I got 8

Answer 9

r + -3 +3 = -5 + 3

what is -3 + 3 ?
what is -5 + 3 ?

Answer 10

3+3 crosses out and 5+3 is 8

Answer 11

No.

Answer 12

it is -5 +3 which is different from 5+3

if you have time, see
http://www.khanacademy.org/math/arithmetic/absolute-value/adding_subtracting_negatives/v/adding-negative-numbers

Answer 13

ok thank u

Answer 14

Mention Not

Answer 15

also this example
http://www.khanacademy.org/math/arithmetic/absolute-value/adding_subtracting_negatives/v/adding-integers-with-different-signs