document.write( "Question 216008: if the sum of a number and seven is tripled, the result is two less tha twice the number. find the number? \n" ); document.write( "
Algebra.Com's Answer #163165 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Just write an equation for what it says (x= \"a number\")
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\n" ); document.write( "the sum of a number and seven is tripled, the result is two less the twice the number.
\n" ); document.write( "3(x+7) = 2x - 2
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\n" ); document.write( "3x + 21 = 2x - 2
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\n" ); document.write( "3x - 2x = -2 - 21
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\n" ); document.write( "x = -23
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\n" ); document.write( "Is this true? check in original equation:
\n" ); document.write( "3(-23+7) = 2(-23) - 2
\n" ); document.write( "3(-16) = -46 - 2
\n" ); document.write( "-48 = - 48; guess it is \n" ); document.write( "
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