Select all of the following expressions that are equivalent to ab - 2 = c
2 answers:
Answer:
Option C.
Step-by-step explanation:
The given expression is ab - 2 = c
Option a : a =
- 2
ab = c - 2b
Not equivalent to the original expression.
Option b : b = c + 
ab = ac + 2 ⇒
= c
Not equivalent
Option c : ab = c + 2
ab - 2 = c
Equivalent to original expression
Option d : a -
= b
2a - c = 2b
Not equivalent
Option e : b -
= a
bc - 2 = ac ⇒ c (b-a) = 2 ⇒ c = 
Not equivalent
Option f : a = c + 
ab = bc + 2
= c
Not equivalent
The only one that's equivalent is The 3rd one. ab=c+2
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