Question

1) (3a-4b)+(-7a+8b)=

2) (2x+4y+3)+(3x+5y-10)=

3) (-5a-3b)+(8a-10b)=

4) (-3a-7b-10c)+(10a+14b-3c)=

5) (1/2a-4 1/2b+5c)+(1 1/2a+1 1/2b-7c)=

6)(-x-y-z)+(x-y+z)=

7)(8x-9y-10z)+(x+y+2y+z)=

Za szybkie odrobienie zadanie daje naj ;)

Answer 1

1) (3a-4b)+(-7a+8b)=-4a+4b

2) (2x+4y+3)+(3x+5y-10)=-7+5x+9y

3) (-5a-3b)+(8a-10b)=3a-13b

4) (-3a-7b-10c)+(10a+14b-3c)=7a+7b-13c

5) (1/2a-4 1/2b+5c)+(1 1/2a+1 1/2b-7c)=2a-3b-2c

6)(-x-y-z)+(x-y+z)=1

7)(8x-9y-10z)+(x+y+2y+z)=9x-6y+z