已知2a+3b=2,则3-4a-6b=?

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已知2a+3b=2,则3-4a-6b=?已知2a+3b=2,则3-4a-6b=?已知2a+3b=2,则3-4a-6b=?2a+3b=2,2a=2-3b,a=2-36/23-4a-6b=3-4(2-3b

已知2a+3b=2,则3-4a-6b=?
已知2a+3b=2,则3-4a-6b=?

已知2a+3b=2,则3-4a-6b=?
2a+3b=2,2a=2-3b,a=2-36/2
3-4a-6b=3-4(2-3b/2)-6b=3-4+6b-6b=-1

3-4a-6b
=3-(4a+6b)
=3-2(2a+3b)
=3-2×2
=-1

3-4a-6b =3-2(2a+3b) =3-2*2 =3-4 =-1

3-4a-6b
=3-2(2a+3b)
=3-2x2
=3-4
=-1

3-4a-6b=3-2(2a+3b)=3-4=-1

3-4a-6b=
3-2(2a+3b)=-1

原式=3+2(2a+3b)
=3-2×2
=-1