<PRE><B>Question 223232</B>
9x-5(3x-12)=30


Step 1.  Multiply out the terms to get rid of the parenthesis and be careful or aware of the minus sign:


{{{9x+(-5)*(3x)+ (-5)*(-12)=30}}}


{{{9x-15x-60=30}}}


Step 2.  Combine the x-terms and add 60 to both sides of the equation



{{{(9-15)x-60+60=30-60}}}


{{{-6x=-30}}}


Divide by -6 to both sides of the equation



{{{-6x/-6=-30/-6}}}


{{{x=5}}}


Check...{{{9x-5(3x-12)=30}}}...{{{9*5-5(3*5-12)=30}}}....{{{30=30}}}...a true statement.


Step 3.  ANSWER:  {{{x=5}}}


I hope the above steps were helpful.


For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.


Good luck in your studies!


Respectfully,
Dr J
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