Question

Solve for x: -3|x + 7| = -12
Select one:
a. x = , x = −
b. x = −3, x = −11
c. x = −3, x = 11
d. No solution

Answer 1

What should first step be ?

Answer 2

divide -3 by both sides?

Answer 3

so i would get lx+7l=4 right?

Answer 4

Yes ! And after that ?

Answer 5

this is were i get confused what do i do to get the next step?

Answer 6

When you have :
\[|a|=b\]
where b is a positive number, then you can say :
\[a= b ~~~\text{ou}~~ a=-b\]

Answer 7

so x=-3 and x=11?

Answer 8

You have :
\[|x+7|=4\]
So :
\[x+7=4~~~~ou~~~~x+7=-4\]

Is it right ? If so go ahead and get the solution ! :)

Answer 9

im bloody confused!

Answer 10

I give you a simple one :
Find x if : |x|=3

Show me your attempt