(5X+1-Y)+(5X+1-Y-Z)+(5X+1-Y-Z-A)+(5X+1-Y-Z-A-B)=5X+1 /////x=几
问题描述:
(5X+1-Y)+(5X+1-Y-Z)+(5X+1-Y-Z-A)+(5X+1-Y-Z-A-B)=5X+1 /////x=几
答
(5X+1-Y)+(5X+1-Y-Z)+(5X+1-Y-Z-A)+(5X+1-Y-Z-A-B)=5X+1
20X+4-4Y-3Z-2A-B=5X+1
15X=1-4+4Y+3Z+2A+B
=4Y+3Z+2A+B-3
X=(4Y+3Z+2A+B-3)/15关键我是想知道它的答案是几 最小的数字是多少 谢谢Y,Z,A,B你没给出确定数字值,所以是无法求出数字的