4x-3+5x+9=7x-4+5x

分类: 作业答案 • 2021-12-29 10:08:29

问题描述：

4x-3+5x+9=7x-4+5x

答

4x - 3 + 5x + 9 = 7x - 4 + 5x
9x + 6 = 12x - 4
12x - 9x = 6 + 4
3x = 10
x = 10/3