Các câu hỏi tương tự
a,tim x biet |x-2|+|3-2x|=2x+1
b,tim x,y thuoc Z biet xy+2x-y=5
c, tinh A=(1-1/15)(1-1/21)(1-1/28).....(1-1/210)
tim x biet 2x+1/x-2=2x-3/x+6
a, Tim x biet:/x-2/+/3-2x/=2x+1
b, Tim x,y thuoc Z biet:xy+2x-y=5
c, tim x,y,z, biet :2x=3y;4y=5zva 4x-3y+5z=7
|(x+1/2).|2x-3/4||=2x-3/4 tim x biet
Tim x,y,z biet:2(x-1)-3(2x+2)-4(2x+3)=16
tim x, biet:
a, |2x-1|= |2x+3|
b, |5x-3|-x=7
Tim x biet
| 2x-1 | - | x-3 | = 0
help: tim x biet: | x+1| +|2x-3|=|3x-2|
Tim x,y biet: |x+1| - 2|2x-3|