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OpenStudy (anonymous):
B is between A and C. AB=2x-4 BC=7x+5 AC=82 What is the value of x? Show your work for credit.
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OpenStudy (amistre64):
does AB + BC = AC?
OpenStudy (anonymous):
yes
OpenStudy (amistre64):
then all thats left is to fill in the peices and solve for x
OpenStudy (amistre64):
AB + BC = AC (2x-4) + (7x+5 ) = 82
OpenStudy (anonymous):
how do i find x tho?
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OpenStudy (amistre64):
by combing like terms to begin with
OpenStudy (amistre64):
since there is a + in the middle, the paranthesis are really useless 2x-4 + 7x+5 = 82
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