1.5X+7.4=0.6X+9.2 = = =
问题描述:
1.5X+7.4=0.6X+9.2 = = =
答
1.5X+7.4=0.6X+9.2
1.5x-0.6x=9.2-7.4
0.9x=1.8
x=2