不等式4(x+1)≤64的正整数解为_.
问题描述:
不等式4(x+1)≤64的正整数解为______.
答
去括号,得:4x+4≤64,
移项,得:4x≤64-4,
即4x≤60,
系数化成1得:x≤15,
则正整数解是:1,2,3,4,5,6,7,8,9,10,11,12,13,14,15.
故答案是:1,2,3,4,5,6,7,8,9,10,11,12,13,14,15.