公园里有6棵柏树，杏树的棵数是柏树的4倍。两种树一共有多少棵？:L(u,o-R'}(?.y9Z'O-w0}5R+S4{
算式：提示,M:r8B6s,D5L,b7U:L(u,o-R'}(?.y9Z'O-w0}5R+S4{
答：两种树一共有)I(\+t3j5d/y'Z;X棵。:L(u,o-R'}(?.y9Z'O-w0}5R+S4{