x+3=5x,x等于多少?
问题描述:
x+3=5x,x等于多少?
答
x+3=5x
5x-x=3
4x=3
x=3÷4
x=0.75
x+3=5x,x等于多少?
x+3=5x
5x-x=3
4x=3
x=3÷4
x=0.75