Question

-15-18+3=

-9x+6x-2x=

15x-45x=

19y-18y+17y=

20x-20y=​

Answer 1

Answer:

-15-18+3 = 0

-9x+6x-2x = -5x

15x-45x = -30x

19y-18y+17y = -27y

Answer 2

Answer:

1. -30

2.-5x

3. -30x

4.18y

5. 20x-20y cannot be solved