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12-02-2018
Mathematics

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if ab+3ac=48 and 10b+30c=80 find a

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MANNYCARRILLO6 MANNYCARRILLO6

12-02-2018

ab + 3ac = 48

10b+30c=80

b=8 - 3c

a(8-3c) + 3ac = 48

8a - 3ac + 3ac = 48

8a = 48

a=48/8

hope that helps

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