解方程 X/5+6950-X/8=1000
问题描述:
解方程 X/5+6950-X/8=1000
答案是1750,可我却算不出来
答
8x +5(6950-x) =40000
8x -5x = 40000 - 5*6950
3x =5250
x = 1750