一队士兵过河,如果每船坐15人,还剩9人;如果每船坐18人,刚好剩余一条船。问有多少条船?/l(u;h/i2`5Q:x
解:设有x条船。/l(u;h/i2`5Q:x
算式:提示;o,x0Y2h([;L6X6\6s0z/?2q/l(u;h/i2`5Q:x
答:问有3S0d1K6A(v条船。/l(u;h/i2`5Q:x