Bài 1: tìm x biết
a) 2/3 của x là:-150
b)x+30%=1,3
c)2/3+x=45%
d)3 1/3x+16
e)8 2/3:x-10=-8
f)(2 4/5x -50):2/3=51
bài 2:
a)(1/8+3/4):5/6+1/2
b)1/2+3/4-(3/4-4/5)
c)2/3+1/3.(-4/9+5/9)
d)2/5+3/5:(3/5+-2/3)-3 1/2
e)(2-5/12):3+17/36
f)(7/8-3/4).11/3-2/3
g)75%-1 1/2+0,5:5/12
h)(2+5/6):1 1/5+-7/12
Loga
Sinh Học lớp 12
