"(1-80%)X=1/4X-0.6"这道题怎样算,
问题描述:
"(1-80%)X=1/4X-0.6"这道题怎样算,
答
同乘20 4x=5x-12
x=12
"(1-80%)X=1/4X-0.6"这道题怎样算,
同乘20 4x=5x-12
x=12