x = y + 30 (I)
[tex] \frac{x + 10}{y + 10} = \frac{3}{2} [/tex]
2x + 20 = 3y + 30
2x - 3y = 10 (II)
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2(y+30) - 3y = 10
2y + 60 - 3y = 10
-y = -50
y = 50
x = y + 30
x = 50 + 30
x = 80
Football team has 80 members, basketball team has 50 members.
