x-1<0 <=> x<1
x+1>0 <=> x>-1
Nên -1<x<1 Vậy x =0
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Các câu hỏi tương tự
so phan tu cua tap hop x thoa man:17-x+|x-4|=0 la......
(neu cach lam)
Tim cac so nguyen x thoa man:
a, |17x-5|-17x+5|=0
b,|x+2|+|x-5|=7
Cach lam nua nhe
Tim cac so nguyen to x , y thoa man:
(x-2)2.(y-3)2=4
trinh bay cach lam nhe
so cap x;y nguyen thoa man x>y va x/5=7/y la giup mik nhe mik tik cho !
Tim x biet:
(2x-1)5=(2x-1)7
Tim cac so nguyen to x , y thoa man:
(x-2)2.(y-3)2=4
trinh bay cach lam nhe
tap hop cac so nguyen x thoa man |7-x|=|x+3| la {...}.(neu tap hop co nhieu phan tu,nhap theo thu tu tang dan, cach nhau boi dau ";")
so nguyen x be nhat thoa man (2x+3) chia het (x+1) la
nhanh len nhe
cho x, y , z la cac so nguyen thoa man x . y - x. z + y.z - z^2 +1 =0 chung minh rang x+ y =0
Tim cac nguyen to x ; y thoa man : (x-2)^2 . (y-3)^2 = 4 ghi cach lam nhe!
Ai nhanh nhat , dung nhat like luon !