(1/25 x 26 + 1/26x27+...+1/29x30)x150 + 1,03: [1,03x(X-1)] =22
(1/25x26+1/26x27 +...+ 1/29x30)+150+103:1,03x(X-1)=11
tìm X hộ mình nhé
tim y
( 1/ 24x25 + 1/ 25x26 + ..... + 1/ 29x30 ) x 120 + y : 1/3 = -4
\(\left(\frac{1}{25.26}+\frac{1}{26.27}+............+\frac{1}{29.30}\right).150+103\div\left[1.03+\left(x+1\right)\right]=22\)
10.(x+1)-5.(x-1)+3x-1=22.Tìm x thuộc N.
Tìm x:
(1/1.2.3+1/2.3.4+...+1/8.9.10).x=22/45
Tìm số tự nhiên X, biết: ( 1/1.2.3 + 1/2.3.4 + ....+1/8.9.10) x X = 22/45
tìm x biết:(1/1*2*3+1/2*3*4+...+1/8*9*10)*x=22/45
tìm x biết:(1/1.2.3+2/2.3.4+...+1/8.9.10).x=22/45