05-18-2008, 10:54 AM
I took my first practice test on REA, scored 66 
On question 29 of 60 for test 1, I am completely lost. lol
Question:
If xy-3=20 and y-3=5, then x=
The answer is 3.
Under the explanation, it gives the following steps:
xy-3x=20
Factor:
x(y-3)=20
Substituting (y-3)=5
X(5)=20
Dividing both sides by 5:
X=4
**************
My question, it shows the first step under the explanation xy-3x=20. Where did the other x come from? I noticed they placed an x behind 3.
On question 29 of 60 for test 1, I am completely lost. lol
Question:
If xy-3=20 and y-3=5, then x=
The answer is 3.
Under the explanation, it gives the following steps:
xy-3x=20
Factor:
x(y-3)=20
Substituting (y-3)=5
X(5)=20
Dividing both sides by 5:
X=4
**************
My question, it shows the first step under the explanation xy-3x=20. Where did the other x come from? I noticed they placed an x behind 3.
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