1.(4x-3y)-[2(x-1)+2y-3] 2.(2a-5b)-{-3b-2[4a-2(3a-b)}1.(4x-3y)-[2(x-1)+2y-3]2.(2a-5b)-{-3b-2[4a-2(3a-b)}

问题描述:

1.(4x-3y)-[2(x-1)+2y-3] 2.(2a-5b)-{-3b-2[4a-2(3a-b)}
1.(4x-3y)-[2(x-1)+2y-3]
2.(2a-5b)-{-3b-2[4a-2(3a-b)}