document.write( "Question 235227: I haven't ddone algebra in over 20 yrs. I'm sure this equasion is very simple but maybe with your help I can work my way through. (((-8+ 3x -7x =48 ))) \n" ); document.write( "

Algebra.Com's Answer #173333 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The big important rule for solving equations is:
\n" ); document.write( "Whatever you do to one side of the equation, you
\n" ); document.write( "must do to the other side.
\n" ); document.write( " $\"-8+%2B+3x+-+7x+=+48\"$
\n" ); document.write( "The next rule is:
\n" ); document.write( "Get the unknown on the left side and the
\n" ); document.write( "numbers on the right side
\n" ); document.write( "------------------------
\n" ); document.write( "Add $\"8\"$ to both sides
\n" ); document.write( " $\"-8+%2B+3x+-+7x+=+48\"$
\n" ); document.write( " $\"-8+%2B+8+%2B+3x+-+7x+=+48+%2B+8\"$
\n" ); document.write( " $\"3x+-+7x+=+56\"$
\n" ); document.write( "Simplify the left side
\n" ); document.write( " $\"-4x+=+56\"$
\n" ); document.write( "Divide both sides by $\"-4\"$
\n" ); document.write( " $\"x+=+-14\"$
\n" ); document.write( "Now check the answer:
\n" ); document.write( " $\"-8+%2B+3x+-+7x+=+48\"$
\n" ); document.write( " $\"-8+%2B+3%2A%28-14%29+-+7%2A%28-14%29+=+48\"$
\n" ); document.write( " $\"-8+-+42+%2B+98+=+48\"$
\n" ); document.write( " $\"-50+%2B+98+=+48\"$
\n" ); document.write( " $\"48+=+48\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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