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OpenStudy (bruno102):
-4x + 1 ≥ 7
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OpenStudy (dmezzullo):
Do u have any idea on what to start off with? Like what u do first
OpenStudy (bruno102):
I thought I would divide?
OpenStudy (dmezzullo):
Not quite
OpenStudy (bruno102):
Subtract?
OpenStudy (bruno102):
I don't really know..
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OpenStudy (anonymous):
-4x + 1 ≥ 7
-4x ≥ 7-1
-4x ≥ 6
x ≥ 6/(-4)
x ≥ -3/4
OpenStudy (bruno102):
Ok, I have done this problem the way you did it @Jaama from the first line to the fourth but I don't get the last line.
OpenStudy (dmezzullo):
Sorry i had to do something i would like to help tho
OpenStudy (bruno102):
and are you supposed to turn the greater than or equal to sign around?
OpenStudy (anonymous):
when you multiply or divide by a negative number, yes
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OpenStudy (bruno102):
so would the answer be x is less than or equal to - 3/4?
OpenStudy (anonymous):
by the way its -3/2
OpenStudy (bruno102):
ohhh how do you get that though? I dont get how 6/-4 is that
OpenStudy (anonymous):
6/-4 = 3/-2
you can check with calculator but it's (3/-2)*(2/2)
OpenStudy (anonymous):
which is (3/-2)*1
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OpenStudy (bruno102):
so your basically just simplifying the 6/-4
OpenStudy (anonymous):
yes. and final answer is x <= -3/2
OpenStudy (bruno102):
Thank you, you were a great help!
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