8x+3x0.9=6.3解方程

分类: 作业答案 • 2021-12-30 13:34:54

问题描述：

8x+3x0.9=6.3解方程

答

8Ⅹ+2.7=6.3
8Ⅹ+2.7-2.7=6.3-2.7
8Ⅹ=3.6
Ⅹ=3.6÷8
Ⅹ=0.458Ⅹ+2.7=6.3
8Ⅹ+2.7-2.7=6.3-2.7
8Ⅹ=3.6
Ⅹ=3.6÷8
Ⅹ=0.45