(x+34)/5=187-67=120
(x+34)=120.5=600
x=600-34=566
187 - ( x + 34 ) / 5 = 67
( x + 34 ) = 120, 5 = 600
x = 600 - 34
x = 566
Tim x biet:900+x+x+34=10987
tinh nhanh
64x25+35x25x25
tim so tu nhien biet
4/15 < x <2/5 x 10/3
tim
4/9 cua 81 5/13 cua 6 ta 34% cua 56
tim x
890 : x = 35 dư 15
648 - 34 nhân x = 444
1482 : x + 23 = 80
ai giup mk se kb va cho 1 sao nha
tim x biet
X x 5,5 = 176,04
153 x = 34
X x 2.4 = 300
Bai 1: Tim ab ; biet ab = b x 9
Bai 2 : Tim ab, biet :
a) ab x 5 = 2ab b) ab = 4ab / 9.
Bai 3 : Tim ab, biet : a 2 = b x 5
Bai 4 : Tim cac so ab biet :
a) a x3 = bx9 b) a x4 = b x6.
Bai 5 :
a) Tim abc, biet a , b , c khac nhau va : a x bc = 91.
b) Tim a , b , c khac nhau biet aa x bc = 1001
tim x : 1 x 34 +5 x6 + 7 x = 1832
Tim x biet x*7+x*9-x-x*5=290
x =,,,?
tim x,biet: 1+2+3+5+...+x=55
tim x biet 3/5 - 1/4 : x = 25/100
Tìm X:
2 x X - ( 67 + 34 ) : 2 = 121
