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

User Bethany
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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
User SamAko
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