hannahvloitos hannahvloitos

06-02-2017
Mathematics

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3(r-6)+2=4(r+2)-21 find the value of x and show steps

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doctorwhomaniam doctorwhomaniam

06-02-2017

3(r-6) +2 = 4(r+2) -21
3r - 6r +2 = 4r +8 -21
-3r +2 = 4r -13
2 = 7r -13
15 = 7r
r = [tex] \frac{15}{2} [/tex]
r = 7.5

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