解方程:
11/12-120%=6.5
2x+2/9×5=2
2/3x-1/2x+1.2=3.4
题1?
2X=2-2/9
2X=16/9
X=8/9
(2/3-1/2)X=3.4-1.2
1/6X=2.2
X=13.2
第一题啥意思
x=4/9
x=2.2x6=13.2