3(2x-0.3)=5x 0.7急,越快越好
问题描述:
3(2x-0.3)=5x 0.7
急,越快越好
答
3(2x-0.3)=5x 0.7
6X-0.9=3.5
6X=3.5+0.9
6X=4.4
X=0.74