7. In a sports club with 30 members, 17 play badminton, 19 play tennis, and 2 do not play either. How many members play both badminton and tennis? *
1 point
A.7
B.8
C.9
D.10
E.11

B.8

Step-by-step explanation:

17+19=36= total number of players all together

30-2 (the members who don’t play)=28 members who do play

36-28=8

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

correct answer:

b.(19,-2)