5(x-4)=5x(20-4)
问题描述:
5(x-4)=5x(20-4)
答
5(x-4)=5x(20-4)
5x-20=100-20
5x=100
X=20
5(x-4)=5x(20-4)
5(x-4)=5x(20-4)
5x-20=100-20
5x=100
X=20