Question

Necesito resolver esto:

(2a+2b+2c)- (a+b+c)

(9 m+2n)- (-4m-2n)

(3/4 xy +2z)- (-xy+1.5z) =

(m+n+p)- (1/2 m- 1/2 n)

- (3x^2+ y^2 )+ (2/5 x^2- y+z) =

Answer 1

1. a+b+c
2. 13m+4m
3. 1 3/4xy+0.5z
4. 1/2m+ 1 1/2n+p
5. 2 1/5x^2+-y^2-y+z