Question

Could someone please help me simplify this expression? -3(b – 7)

Answer 1

Expand the brackets
\[=-3(b-7)\]\[=-3(b)-3(-7)\]

Answer 2

\[=?\]

Answer 3

ummm add 7? sorry idk ):

Answer 4

what u get when u multiply -3 with b ?

Answer 5

3?

Answer 6

nope

Answer 7

when u multiply -3 with b, u will get
\[=-3\times~b\]\[=-3b\]

Answer 8

ohhhh okay i see

Answer 9

my bad

Answer 10

okay,now what will u get when u multiply -3 with -7?
Remember\[(-)negative~value~\times(-)negative~value=(+)positive~value\]\[(+)positive~value~\times~(+)positive~value=(+)positive~value\]\[(-)negative~value~\times~(+)positive~value=(-)negative~value\]\[(+)positive~value~\times(-)negative~value=(-)negative~value\]

Answer 11

\[=-3\times-7\]\[=?\]

Answer 12

hmmm 21?

Answer 13

correct!

Answer 14

yayyy! lol

Answer 15

Therefore,the expression will be\[=-3(b-7)\]\[=-3(b)-3(-7)\]\[=-3b+21\]

Answer 16

Ohhh okay and thats it?? you just solve the last one and thats it?

Answer 17

yep :)

Answer 18

@Dimples97

Answer 19

@MARC_D Thankyouuuu (:

Answer 20

Yw! @Dimples97 ^_^