Question

3(-2a plus b -3c)-2(-a-3b-c)-(3a-4b-2c) va rog am nevoie urgenta

Answer 1

   3(-2a + b -3c)-2(-a-3b-c)-(3a-4b-2c) =
= -6a + 3b - 9c + 2a + 6b + 2c - 3a + 4b + 2c = 
= (-6a + 2a - 3a) + (3b + 6b + 4b) + (-9c + 2c + 2c) =
= -7a + 13b - 5c

Answer 2

3(-2a+b-3c)-2(-a-3b-c)-(3a-4b-2c)
= 3-2a+b-3c-2+a+3b+c+3a-4b-2c
= -3 +4b+4c-4b-4a
= -3+4c-4 a

* +4 b -4b se pot simplifica