Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

I 3x + 7 I = - I 8x -2I Can somebody explain why my answer key says, that there is no solution to this equation?

OpenStudy (anonymous):

because absolute value cannot be negative

OpenStudy (anonymous):

Refering to the negative 2 inside the symbols, or the negative sign outside them?

OpenStudy (anonymous):

the equation means that the absolute value on the LHS must equal the negative of absolute value on the RHS. but since absolute values cannot be negative, it is impossible for the LHS to be equal to RHS

OpenStudy (anonymous):

(but you need to check for 0, as the absolute value of 0 is 0)

OpenStudy (anonymous):

thanks, lightbulb came on. :)

OpenStudy (anonymous):

yes, andras, but the values of x that make the LHS and RHS 0 are different. so that cannot be a solution

OpenStudy (anonymous):

true true

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
RAVEN69: My drawing so far is actually fire
1 week ago 9 Replies 2 Medals
PureSoulless: is staying at your friend's house while you're homeless legal.
2 weeks ago 5 Replies 1 Medal
whyjustwhy: i did that one TV girl trend with blake (aka @ShadowKid3)
1 week ago 12 Replies 2 Medals
whyjustwhy: i did that one TV girl trend with blake (aka @shadowkid3)
2 weeks ago 3 Replies 0 Medals
whyjustwhy: yo guys he can watch me sleep now (ignore dora)
3 weeks ago 24 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!