Answer:
3.3 recurring
Step-by-step explanation:
1) expand bracket
11-3a+6=27
2)rearrange equation
11+6=27+3a
11+6-27=3a
17-27=3a
-10=3a
-10/3=a
a=3.3 recurring
Step-by-step explanation:
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Answer:
man that's hard good luck
Answer:
i have no clue
Step-by-step explanation:
The student simplified wrong because when he brought a to the numerator, he forgot to change the sign of the exponent. Instead of getting a^2 in the numerator (by adding 4 + -2), he should have gotten a^6 (by adding 4 + 2)
