学校买来4个足球,蓝球的个数是足球的3倍,学校买来篮球多少个?0u*@0_*C7}2b4a's/V(d)O'_+\
算式:提示1?7C2k4O/e0[/{)`4w5_2f1y3n0u*@0_*C7}2b4a's/V(d)O'_+\
答;学校买来篮球+k+i,o(|/n2q2d7]-L3`+t6{0g个。0u*@0_*C7}2b4a's/V(d)O'_+\