马戏团有1只老虎，3只猴子，黑熊和老虎一样多，问马戏团有几只动物？7f6h4E2r'h7T+r.U1o3Q'X
算式：提示'h4V'z:r:O'O0R3a-j7f6h4E2r'h7T+r.U1o3Q'X
答：马戏团有0X:j.n'n6F*j.k+|4u*e)|'}/E*B,x只动物。7f6h4E2r'h7T+r.U1o3Q'X