Question

Раскрыть скобки и упростить:1)3a-(a+2b);2)5x-(2y-3x);3)3m-(5m-(2m-1))4)4a+(2a-(3a+2))

Answer 1

1)2a-2b
2)8x-2y
3)-1
4)3a-2

Answer 2

1) [email protected]@-2&[email protected]&
2) =5×-2¥+3×=8×-2¥
3) =3m-(5m-2m+1)=3m-3m-1=-1
4) [email protected][email protected]@[email protected]