natalieb1001
Answered

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During his tennis career in singles play, John won 3 fewer tournament A titles than tournament B titles, and 2 more tournament C titles than tournament B titles. If he won 17 of these titles total, how many times did he win each one?
How many A titles
How many B titles
How many C titles

Sagot :

secretlyblu
ok use why they told you.

17=A+B+C & A=B-3 &C=2+B
we only what to work with one variable at a time. 
lucky for us we have an idea of what "A" & "C" are. we can plug those into our first equation respectively. 

SOLVE FOR B

17= (B-3)+B+(2+B)
17=B-3+B+2+B
17=3B-1
17+1=3B
18=3B
18/3=B
6=B  (this means he won 6 B titles)

SOLVE FOR A

A=B-3
A=6-3
A=3

SOLVE FOR C

C=2+B
C=2+6
C=8

CHECK

17=A+B+C
17=3+6+8
17=17
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