Quandaries and Queries
 

 

Who is asking: Student
Level: Secondary

Question:
I'm doing a practice test question and the answer I keep turning out is different from the answer on the answer sheet. I think I might be forgetting a step. The problem is:

3A/4 +1=(2A-1)/3

The answer is -16. If anyone could explain the steps to me to getting the answer I would be grateful. Whenever I do it I get something completely different.

 

 

Hi Rachael,

I would work on eliminating the fractions so first, multiply both sides by 4.

4 3A/4 + 1) = 4  (2A -1)/3

3A + 4 = (8A - 4)/3

Now multiply both sides by 3

3 (3A + 4) = 3  (8A - 4)/3

9A + 12 = 8A - 4

A = -16

Penny

 
 

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