Answer:
A.
Step-by-step explanation:
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Solve 3(a + 3) – 6 = 21. Write a reason for each step.
2 answers:
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Answer:
option a is the answer
Step-by-step explanation:
put the value of x in each expression as x = -2
you'll see that in option a the expression becomes
which is not defined. hence -2 is excluded value
