Question

|2- 3x| = 7


A.{-5/3, 3}

B.{-15, 3}

C.{-3, 5/3}

D.{-3, 15}

Answer 1

same idea as last time

|2-3x| = 7

turns into

2-3x = 7 or 2-3x = -7

solve each for x

Answer 2

yup thats true

Answer 3

but 3 cant go into 7

Answer 4

2 - 3x = 7

-3x = 7 - 2

-3x = 5

x = ??

Answer 5

that will give you one solution

Answer 6

do i multiply it then? then it will be -15

Answer 7

no

Answer 8

you divide both sides by -3

Answer 9

to isolate x

Answer 10

but 3 cant go into 5 evenly

Answer 11

that's why you'll leave it as a fraction

Answer 12

or get a decimal approximation

but in this case, they want the fraction

Answer 13

oooh so its -5\3

Answer 14

-5/3 yes

Answer 15

that's one of them

Answer 16

and the other one is 3 right?

Answer 17

yes, since

2 - 3x = -7

-3x = -7 - 2

-3x = -9

x = -9/(-3)

x = 3