桥两边要安装路灯，左边装8盏，右边也要装8盏，一共要装几盏路灯？4p2r:F1u(N5r3_6^*P6r(d;r,g)~*T.{*v;z
算式：提示,u8j,y/D+V*G)z+R,R4p2r:F1u(N5r3_6^*P6r(d;r,g)~*T.{*v;z
答：一共要装,z(q8p1P-@,r.B:n/_6_8P,s盏路灯。4p2r:F1u(N5r3_6^*P6r(d;r,g)~*T.{*v;z