5-(2x+3)-3÷4(x-2)-1÷2(2x+3)
问题描述:
5-(2x+3)-3÷4(x-2)-1÷2(2x+3)
答
5-(2x+3)-3÷4(x-2)-1÷2(2x+3)
=5-2x-3-3/4x+3/2-x+3/2
=5-3+3/2+3/2-2x-3/4x-x
=2+3-15/4x
=5-15/4x