60(x+0.03)+90(x-0.25)=66.3
问题描述:
60(x+0.03)+90(x-0.25)=66.3
答
60(x+0.03)+90(x-0.25)=66.3
60x+1.8+90x-22.5=66.3
150x=87
x=0.58