68-4.4X=24 8y-4×14=0 x+3.5×3=18

问题描述:

68-4.4X=24 8y-4×14=0 x+3.5×3=18
是3个题不是一个题,

68-24=4.4X
44=4.4x
x=10
8y-56=0
8y=56
y=7
x+10.5=18
x=7.5
怎么老感觉有罪恶感