0.40×60+(x-60)×0.40×70%=0.36x 解方程的具体步骤,
问题描述:
0.40×60+(x-60)×0.40×70%=0.36x 解方程的具体步骤,
答
0.40×60+(x-60)×0.40×70%=0.36x
24+(x-60)*0.28=0.36x
24+0.28x-16.8=0.36x
7.2=0.08x
x=90