a-b=3-11a+11b

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a-b=3-11a+11ba-b=3-11a+11ba-b=3-11a+11b解-11a+11b=-11*（a-b)=-11*3=-33-11a+11b=-11*（a-b)=-11*3=-33因为a-

a-b=3-11a+11b
a-b=3
-11a+11b

a-b=3-11a+11b
解 -11a+11b
= -11*（a-b)
= -11*3
=-33

-11a+11b
= -11*（a-b)
= -11*3
=-33

因为a-b=3.所以-11a+11b=-11(a-b)=-33

33 代入就可以了

a-b=3 -a+b=-3 两边同乘11 -11a+11b=-33 就采纳我的吧

这种题也来

-33

等于_33

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