Các câu hỏi tương tự
X : 16 : ( 3/10 x X+5/2 ): X - 3=17. Tìm X
Tính bằng cách thuận tiện nhất:
a) 16, 2 x 3, 7 + 5, 7 x 16, 2 - 7, 8 x 4, 8 - 4, 6 x 7, 8 : 11, 2 + 12, 3 + 13, 4 - 12, 6 - 11, 5 - 10, 4
a,70/3 —(x+4 1/5)=16
b,x:1/2+1 1/3=2 4/5
c,1/2+x:3=10/3
đ, (2x x—1)x(3—x)=0
2+4+6+...+ x =60
1 +4 + 7+ 10 +....+ x = 330
2-(5 3/8 + x - 7 5/24 ) :16 2/3 = 0
2*X-138=8*9
231-(X-6)=1339:13
70-5*(X-3)=45
10+2*X=16
Bài 1: a) 3/10 x13 + 3 / 13 x 16 + 3 / 16 x 19 + .......+ 3 58 x 61
b) 1 / 4 x 7+ 1/7 x 10 = 1 / 10 x 13 + 1/ 13 x 16 + 1/ 16x19
1. Tìm X <- N.
a) 3 : ( 2x + 1 ) + 69 = 72
b) 165 - ( 35 : x + 3 ) . 19 = 13
c) { [ ( 2x + 14 ) : 4 - 3 ] : 2 } - 1 = 0
d) 10 - { [ ( x : 3 + 17 ) : 10 + 316 ] : 16 } = 5
TIM x
X : 16 : (\(\frac{3}{10}\). X + \(\frac{5}{2}\)) : X - 3 =17
A = 3/1 x 2 + 3/2 x3 + 3/3 x 4 + 3/4 x 5 + .............. + 3/9 x 10 + 77/2 x 9 + 77/9 x 6 + 77/16 x 23 + ...............+ 77 /93x 100
Giup mk nha!!!!!!! Ban nao tra loi nhanh thi mk tk cho nha!!!!!!!!! >-<