0.6(1.2x+12)-6=0.6x+6

问题描述:

0.6(1.2x+12)-6=0.6x+6
怎么解

1.2x+12=x+20
0.2x=8
x=40不要缩略步骤等号前后都加60.6(1.2x+12=0.6x+12等号前后都除以0.61.2x+12=x+200.2x=8x=40