1+(0.5x-0.3)/0.2=(x-1)/0.
问题描述:
1+(0.5x-0.3)/0.2=(x-1)/0.
答
1+(0.5x-0.3)/0.2=(x-1)/0.5怎么解?
1+ 2.5x - 1.5 = 2x + 2
0.5x = 2 +1.5-1 = 2.5
x = 5