Can Someone Explain how I Would do This.?
i Just Don't Want the Answer, i Want To Understand it, if so Thank You <3 ^-^
Solve the inequality 2x + 8 < 5x - 4.
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OpenStudy (kc_kennylau):
Put all terms with x to the left hand side and terms that don't to the right hand side
OpenStudy (anonymous):
I dont get that?
OpenStudy (kc_kennylau):
That means put "5x" to the left hand side and "+8" to the right hand side
OpenStudy (kc_kennylau):
Because you group terms containing "x" together and terms that don't together
OpenStudy (anonymous):
so it would be 2x+5x < -4 +8 ?
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OpenStudy (kc_kennylau):
Not quite
OpenStudy (kc_kennylau):
Sorry for misleading you, but when I say "put" I didn't just mean literally put it
OpenStudy (anonymous):
/.\ ughhh
OpenStudy (kc_kennylau):
Okay let's put it this way
OpenStudy (kc_kennylau):
Subtract both sides by 5x
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OpenStudy (anonymous):
would i subtract5x from 2x or 8?
OpenStudy (kc_kennylau):
From 2x
OpenStudy (anonymous):
so nows its 7+8<-4 ?
OpenStudy (anonymous):
You do letters to the left numbers to the right. You should get 2x-5x < -8-4
OpenStudy (kc_kennylau):
Don't leave out the x
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OpenStudy (kc_kennylau):
And 2-5 is not 7
OpenStudy (anonymous):
-3x +8 <-4
Sorry i typed the wrong thing in my calculator
OpenStudy (kc_kennylau):
Yep, now subtract 8 from both sides
OpenStudy (anonymous):
-3x<-12?
OpenStudy (anonymous):
would i divide now?
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OpenStudy (kc_kennylau):
Wonderful
OpenStudy (kc_kennylau):
Yep, but bear in mind that you have to change the sign when dividing by a negative number
OpenStudy (kc_kennylau):
That means if it was bigger than, it becomes lesser than, and vice versa
OpenStudy (anonymous):
what do you mean change the sign? like < to > ?
OpenStudy (kc_kennylau):
Yep
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