(8x+2.4)×2=12.8这个方程怎么解
问题描述:
(8x+2.4)×2=12.8这个方程怎么解
答
(8x+2.4)×2=12.8
8x+2.4=12.8/2
8x+2.4=6.4
8x=6.4-2.4
8x=4
x=4/8
x=0.5