(x+x+三分之一x)乘以3=308
7x=308
x=44
0.3x+0.2乘以(160-x)=36
0.3x+32-0.2x=36
0.1x=4
x=40
x+10=40%乘以(36-x+0)
x+10=14.4-0.4x
1.4x=4.4
x=22/7
(x+x+三分之一x)乘以3=308
7x=308
x=44
0.3x+0.2乘以(160-x)=36
0.3x+32-0.2x=36
0.1x=4
x=40
x+10=40%乘以(36-x+0)
x+10=14.4-0.4x
1.4x=4.4
x=22/7