tim x biet x nhan 2 cong x nhan 3 cong x nhan 4 cong x bang 100
a) X : 0,25 + X × 11 = 24 b) X × 8,01 – X : 100 = 38
c) 2,3 : 2,8 × X = 57,5 d) 0,16 : (X : 3,5) = 2,8
bai 3 : tim x
6 nhan ( x+9845 ) = 29042 nhan 6
(x chia 3) nhan 8 = 8 nhan 3198
bai 7 : tim x
191+ x + 9 = 43 nhan 5
x nhan 25 nhan 4 = 125 nhan 8
bai 8 : tim x
128 nhan x - 12 nhan x - 16 nhan x = 5208000
x nhan 27 + x nhan 30 + x nhan 43 =210500
64 nhan 5+100 nhan 44 / 27 nhan 38 + 146 nhan 19
52 nhan x + 48 nhan x = 100
236 nhan x - x nhan 36 = 1000
216 : x + 34 : x = 10
1245 : x + 64 : x - 35 : x + 26 : x = 100
a, ( 11 nhan 9 - 100 + 1 ) : ( 1 nhan 2 nhan 3 nhan 4 nhan 5nhan 6 nhan 7 nhan 8 nhan 9 nhan 10)
Tim gia tri cua x biet 1/4 nhan 1/5 nhan x=1/2
Bai 1 Tim x
A) x nhan 4 phan 5 = 1 phan 2 nhan 1 phan 3
B ) x : 2 phan 5 = 2phan 3 + 1 phan 2
Tim x, biet : 5/4 nhan x = 5/8 + 3/12
