<PRE><B>Question 118904</B>
1. Use multiplying by 1 to find an expression equivalent to 9/2 with a denominator of 12a? 
Multiply numerator and denominator by 6a to get (9/2)(6a/6a)= 54a/12a
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2. Collect like terms? 23/3x+7/3y-4/3x+7/3y 
????? Like terms relate to addition and subtraction; your problem is
all division.
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3. Remove parentheses and simplify? 9h=6j-4(9h-9j=7K) 
?????why are there two equal signs
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4. Simplify? 2{[5(y-5)+19]-[2(2y-3)+5]}
= 2{[5y-25+19]-[4y-3+5]} 
= 2{y-4]
= 2y-8
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Cheers,
Stan H.

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