18+4X=20 怎么解方程
问题描述:
18+4X=20 怎么解方程
答
18+4X=20
4x = 20-18
4x = 2
x = 2÷4
x = 0.5
18+4X=20 怎么解方程
18+4X=20
4x = 20-18
4x = 2
x = 2÷4
x = 0.5