99x=100x，x=？_百度知道
99x=100x，x=？
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这道题只有一个解，就是X=0请点一下右上角的采纳--来自百度知道专业认证教师
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99x=100x-x
提问者采纳
99x=100x－x99x=99x则这个方程是解是全体实数。
99x=99x0x=0则解是全体实数。 【对于方程ax=b，若a=b=0，则这个方程的解是全体实数】
提问者评价
按照你说的，真的成功了，好开心，谢谢你！
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其他7条回答
99X=(100-1)X99X=99X
∴X有无数解答：X有无数解
这个题的解为任何数。过程如下：你随便想个数，带进去，方程肯定成立
x=0或1 ,可以请选为满意。
99x =99x 啊，分情况了就，一个为0，一不为0时，所以就是0或1 了啊，这题没什么过程好些。如果你写的是解方程的题目，记得分情况要标明。
100x-x=100x-1x=(100-1)x=99x
任意数，……-2，-1，0，1，2……
这是什么？
这是个恒等式啊，可以是任意解啊！
99x=100x-x99x+x=100x-x+x100x=100x所以x=任何数
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出门在外也不愁若x^3+x^2+x+1=0 求x^97+x^98+x^99+x^100+x^101+x^102+x^103的值
若x^3+x^2+x+1=0 求x^97+x^98+x^99+x^100+x^101+x^102+x^103的值
x^3+x^2+x+1=0
x^2(x+1)+(x+1)=0
(x^2+1)(x+1)=0
x=-1
x^97+x^98+x^99+x^100+x^101+x^102+x^103
=x^97+x^98+x^99+x^100(1+x+x^2+x^3)
=x^97+x^98+x^99
=X^96(X+X^2+X^3)
=X^96*(-1)
=-x^96
=-(-1)^96
=-1
的感言：谢谢啊
其他回答 (1)
x^97+x^98+x^99+x^100+x^101+x^102+x^103
=x^97+x^98+x^99+x^100(1+x+x^2+x^3)
=x^97+x^98+x^99
=X^96(X+X^2+X^3)
=X^96*(-1)
=-x^96
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