tim x biet 7+x/12=2/3 b)25-x/18=1/2
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 biet 1001,1<6x + x6 <1111,1
tim x biet
128 - 3 ( x + 4 )=25 - 2
( 15 - 6 x ) =3
24 + 5 nhân x = 49
219 - 7 ( x + 1 ) = 100
ai nhanh mk tick
kb nha
tim x : 1 x 34 +5 x6 + 7 x = 1832
tim x biet 3/5 - 1/4 : x = 25/100
giupsmik giải đề này nhanh đc ko ạ tìm x
6-2(x-1)=4 2*(x-2)+1=7 (2*x-3)+4=9 (3*x-2)-1=3
2*(6-x)+1=5 20+(x-2)=25 (10-2:x)-1=3
3*(4+2*x)-1=8 (x+2)-5=7 (3+2*x)-1=2
tim x biet 1- (5/3/8 + x - 7/5/24 ) / 16/2/3 =0
tim x biet
2/3 chia x/5 cong 5/7 bang 2/7 chia 3/5 cong 9/10
