Question

【题目】1.8÷0.3－0.2 x=2

Answer 1

【答案】x=20

【解析】解：6-0.2x=2

6-0.2x+0.2x=2+02.x

6=2+0.2x

2+0.2x=6

2+0.2x-2=6-2

0.2x=4

x=20

检验：方程左边=6-0.2x

=6-0.2×20

=6-4

=2

=方程右边

所以，x=20是方程的解。