Mathematics 75 Online
OpenStudy (anonymous):

x-7=50

OpenStudy (amistre64):

what happens when we subtract 7 from both sides?

OpenStudy (amistre64):

or add 7 that is

OpenStudy (anonymous):

$\left| x \right| -7=50$

OpenStudy (amistre64):

same concept; except x is either positive of negative

OpenStudy (anonymous):

i meant that ^^

OpenStudy (amistre64):

|x| = x |-x| = x

OpenStudy (anonymous):

so how do you work it out?

OpenStudy (anonymous):

Whatever you do to one side, you do to the other. To isolate x, you have to add 7.. so you need to do that with both sides. Absolute value means that x can be both negative or positive.. |x| - 7 = 50 x = 57 or x = -57, right?

OpenStudy (anonymous):

$\left| x \right| = 57$

OpenStudy (anonymous):

now what?

OpenStudy (amistre64):

now determine for what values of x makes it a true statement according to how an absolute value is defined

OpenStudy (anonymous):

57, -57 thats the answer

OpenStudy (amistre64):

yes

OpenStudy (anonymous):

so theres 2?

OpenStudy (amistre64):

yes

OpenStudy (anonymous):

ok thanks

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
Ash2746: This is what I did in class
15 seconds ago 5 Replies 1 Medal
Breathless: WOmp
10 minutes ago 18 Replies 1 Medal
AishaRadients: How do you cope when you lose someone you love
9 minutes ago 6 Replies 0 Medals
MAGABACK: Who is worse. Harris or Biden?
4 hours ago 4 Replies 0 Medals
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!