6.2 x y = 43.18 + 18.82
6.2 x X- 18.82=43.18 Tìm x
tìm x : x:6:2bằng 6.2
7.75 - (0.5 x X : 5 - 6.2) = 2
giúp mik vớiiiiiiiiiiiiiiiiiiiiiiii
tim y : y : 3 - 7.2 = 1.56
6.2*x=43.18+18.82
1.26 X 3.6 : 0.28 - 6.2
X x 6.2 - X : 0.25 + X : 0.2 = 6.4
bai nay giai giup mk nha
X+ 20%+ X =7.2