Solve for x: -3|x + 7| = -12

x = 5 over 3, x = −19 over 3

x = −3, x = −11

x = −3, x = 11

No solution

Question

Solve for x: -3|x + 7| = -12

 x = 5 over 3, x = −19 over 3

 x = −3, x = −11

 x = −3, x = 11

 No solution

wolfe8 · Answer

I'm guessing you are confused about the absolute symbol? Well, when you see a number in it, for example |y|, it means that when you solve it it will be either -y or +y. Here, your absolute notation encloses x+7. What does that mean?

anonymous · Answer

I have no clue :P

wolfe8 · Answer

Alright. Tell me how you would solve it if those were normal brackets.

solomonzelman · Answer

-3|x + 7| = -12 divide both sides by a negative 3
|x + 7|=4
So....
x+7=-4   OR   x+7=4
lets work the first equation
x+7=-4
x=-4-7=-13

OR  (let work the:) x+7=4
x=4-7=-3

So the answers are  -3 and -13!

GOOD?

solomonzelman · Answer

Still don't understand? Ask if you don't....!

anonymous · Answer

I understand thanks!

solomonzelman · Answer

Medal, Please?

anonymous · Answer

Solomon, I owed you a medal! There you go debt-payment!

solomonzelman · Answer

Thanks Bro!
Good Bye!