Question

5k - [k+ (-3+5k)]

Answer 1

-k+3

Answer 2

5k - [k+ (-3+5k)]

those round parentheses ( )
arn't doing anything so you can drop them

5k - [k+ -3+5k]

now you can combine the k terms in the square brackets [ ]

Answer 3

what do you get when you add the k and the +5k @te61266 ?

Answer 4

@UnkleRhaukus 6k?

Answer 5

5k - [k+ (-3)+5k]

Answer 6

5k - [k+ 5k +(-3)]

Answer 7

5k - [6k+ (-3)]

Answer 8

To find the opposite of a sum you change the sign of each term in the sum.

Answer 9

5k - [6k+ (-3)]
= 5k + [-6k- (-3)]

Answer 10

@skullpatrol -1k+3

Answer 11

Correct :)

Answer 12

thanks @skullpatrol but why does the answer in the book take out the 1 it just has -k+3

Answer 13

(-1)a = -a

Answer 14

If you multiply any number by -1 you get the opposite of that number.