Step-by-step explanation:
Please refer to the attachment
Answer:Commutative property
Step-by-step explanation:
For the equation to = 0 , one of the components must = 0
x = 0
x = -13/9
x = -2/11
(Make each bracket = 0)
e.g. 9x+13=0
9x = -13
x = -13/9
Answer: 9
Step-by-step explanation:
8.
100/ (27-7)
100/(20)
5
9. 4/? =20/45
cross multiply and divide
4*45=180
180/20=
9