The error is that -2 times -5 is 10 not -10. Then carry on from there because that error meant the rest is wrong as well.
Answer:
see explanation
Step-by-step explanation:
2 × 
= 2 × 10 × 10 × 10 × 10
= 2 × 100 × 100
= 200 × 100
= 20000
And

= 2 × 2 × 2 × 2
= 4 × 4
= 16
Answer:
Step-by-step explanation:
Similar

x=4.8
Answer:
n=-1
Step-by-step explanation:
-13+n+5+6=5+4n-4
n-2=4n+1
-2=3n+1
-3=3n
-1=n