2(0.3x+4)-5(0.2x-1.8)=1 求x的解
问题描述:
2(0.3x+4)-5(0.2x-1.8)=1 求x的解
答
2(0.3x+4)-5(0.2x-1.8)=1
0.6x+8-x+9=1
-0.4x=-16
x=40