若a-b等于3/4,则代数式1-4(a-b)的值是()
问题描述:
若a-b等于3/4,则代数式1-4(a-b)的值是()
答
1-4(a-b)
=1-4×3/4
=1-3
=-2
若a-b等于3/4,则代数式1-4(a-b)的值是()
1-4(a-b)
=1-4×3/4
=1-3
=-2