解方程:1.4x+2.6=16.3 知道答案是10,

问题描述:

解方程:1.4x+2.6=16.3 知道答案是10,

1.4x+2.6=16.3
1.4X+2.6=16.3
1.4X=16.3-2.6
=13.7
X=13.7÷1.4
=9.7857