(5x+3)X0.4=5.2怎么解方程

问题描述:

(5x+3)X0.4=5.2怎么解方程

(5x+3)X0.4=5.2
5x+3=5.2/0.4
5x+3=13
5x=13-3
5x=10
x=10/5
x=2

道篇

5x+3=5.2/0.4=13,
5x=13-3=10,
x=2

左右同时除以0.4 等价于5x+3=13
所以5x=10 x=2

(5x+3)=13
5x=10
x=2

5x+3=13
5x=10
x=2

(5x+3)X0.4=5.2
5x+3=13
5x=13-3
5x=10
x=2

(5x+3)X0.4=5.2
5x+3=5.2÷0.4
5x+3=13
5x=10
x=2