Friends A, B, and C have 100 baseball cards between them. A has twice as many as B, and 10 more than C. How many cards does each person have?
A = 44
B = 22
C = 34
A = A
B = A/2
C = A -10
A + B + C = 100
A + A/2 + (A-10) = 100
2A + A + 2A - 20 = 200
5A = 220
A = 44
B = 22
C = 34
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