<PRE><B>Question 1166243</B>
&lt;br&gt;
As written, the problem doesn&#39;t ask you to solve the problem.  It only asks you to write expressions for their current ages and their ages 3 years from now, and then to write the equation you would use to solve the problem.&lt;br&gt;
So your first set of answers is what they are looking for.&lt;br&gt;
But in that set of answers, you don&#39;t show an equation in part e.&lt;br&gt;
The reason is that you skipped part d and tried to put the &quot;equation&quot; there.&lt;br&gt;
It is a common error among beginning algebra students -- you try to write the equation before you have all the pieces you need to write it.&lt;br&gt;
Let&#39;s look at your answers.&lt;br&gt;
a. The instructions tell you to use g for the sister&#39;s (current) age: g
b. Joan is 3 times as old as her sister: 3g
c. The sister&#39;s age 3 years from now will be 3 more than it is now: g+3&lt;br&gt;
The next part asks for an expression for Joan&#39;s age 3 years from now.&lt;br&gt;
You didn&#39;t write an expression for this; instead, you tried to use the given fact that her age 3 years from now will be 2 more than twice her sister&#39;s age then.  But that fact is what you use to write the equation; before you can write the equation, you need the expression for Joan&#39;s age 3 years from now.&lt;br&gt;
d. Joan&#39;s age 3 years from now will be 3 more than it is now: 3g+3&lt;br&gt;
NOW, in part e, you write the equation that says Joan&#39;s age 3 years from now will be 2 more than twice her sister&#39;s age then.  That is, Joan&#39;s age 3 years from now (3g+3) is 2 more than twice her sister&#39;s age 3 years from now (g+3).&lt;br&gt;
You have the expressions for their ages 3 years from now; write the equation.&lt;br&gt;
e. (Joan&#39;s age 3 years from now) will be (is equal to) (2 more than her sister&#39;s age 3 years from now):&lt;br&gt;
(3g+3) = 2+2(g+3)&lt;br&gt;
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