Question

r + (-12) = 19
can someone please help me i dont understand this problem

Answer 1

help me after

Answer 2

you can rewrite it first then undo

Answer 3

r - 12 = 19
now undo -12 by adding 12 to both sides

Answer 4

so r = 19+12
then plug value back in original equation to check

Answer 5

p + (-9) = -9
now what about this problem can you help me with it please

Answer 6

adding a negative is same as subtracting a positive

Answer 7

same concept change to p-9=-9

Answer 8

undo -9 by adding 9 to both sides to keep the equation "balanced"-whatever you do to one side, you must do to the other

Answer 9

so what would r = ?

Answer 10

9 i think

Answer 11

well what is -9 + 9

Answer 12

r = 31

Answer 13

no!

Answer 14

oh ok i am a little slow so

Answer 15

they are opposites...when you add a number and its opposite you get 0

Answer 16

r definitely equals 31.

Answer 17

its ok...math takes time ; )

Answer 18

p=0

Answer 19

yes for original problem : ) we are working another

Answer 20

oh i see.

Answer 21

I'm trying to show process then answer so chill ; )

Answer 22

Have at it.

Answer 23

thanks ; )

Answer 24

p + (-9) = -9
p-9 = -9
+ 9 +9
p=0
check: 0 + (-9) = -9
-9=-9