3/8x+（x-3/8x）×2/3+55=x+1/4x 用方程解3/8x+（x-3/8x）×2/3+55=x+1/4x 用方程解

分类: 作业答案 • 2022-04-16 15:07:17

问题描述：

3/8x+（x-3/8x）×2/3+55=x+1/4x 用方程解
3/8x+（x-3/8x）×2/3+55=x+1/4x 用方程解

答

3/8x+（x-3/8x）×2/3+55=x+1/4x
3/8x + 10/24x +55 = 5/4x
(3/8+10/24-5/4)x=-55
x = 55 × 24/11
x = 120

答

3/8x+（x-3/8x）×2/3+55=x+1/4x
3/8x+5/12x+55=5/4x
11/24x=55
x=120