已知2a+3b=2,则3-4a-6b=?
问题描述:
已知2a+3b=2,则3-4a-6b=?
答
3-4a-6b
=3-2(2a+3b)
=3-2*2
=3-4
=-1
已知2a+3b=2,则3-4a-6b=?
3-4a-6b
=3-2(2a+3b)
=3-2*2
=3-4
=-1