please Please I need urgent help with this I can put it with the procedure please with the procedure of the following

whats the question bro?

Step-by-step explanation:

1) a = -20

2) k = -18

3) n = 8

4) r = -8

5) x = 10

6) b = 0

7) n = -169

8) n = 14

9) n = 12

10) b = 6

11) r = 9

12) b = -5

13) a = -8

14) r = -7

15) p = -3

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.