问题
解答题
13.2x+9x=33.3
108-3x=105
1.5x-x=1
5.4x+x=12.8
x-0.36x=16
1.9x+0.4x=9.2.
答案
13.2x+9x=33.3,
22.2x=33.3,
x=1.5;
108-3x=105,
3x=3,
x=1;
1.5x-x=1,
0.5x=1,
x=2;
5.4x+x=12.8,
6.4x=12.8,
x=2;
x-0.36x=16,
0.64x=16,
x=25;
1.9x+0.4x=9.2,
2.3x=9.2,
x=4.