问题
解答题
解方程:17×0.8-5.8x=7.8.
答案
17×0.8-5.8x=7.8,
13.6-5.8x=7.8,
13.6-5.8x+5.8x=7.8+5.8x,
7.8+5.8x=13.6,
7.8+5.8x-7.8=13.6-7.8,
5.8x=5.8,
x=1.
解方程:17×0.8-5.8x=7.8.
17×0.8-5.8x=7.8,
13.6-5.8x=7.8,
13.6-5.8x+5.8x=7.8+5.8x,
7.8+5.8x=13.6,
7.8+5.8x-7.8=13.6-7.8,
5.8x=5.8,
x=1.