document.write( "Question 937556: If 2x(x+2)=30 and |x+7|=2. What is the value of x? Thanks for your help. \n" ); document.write( "

Algebra.Com's Answer #570959 by josgarithmetic(39617) $\"\"$ $\"About$

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TWO equation in ONE unknown variable. Pick either equation and solve!\r
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\n" ); document.write( "\n" ); document.write( " $\"abs%28x%2B7%29=2\"$
\n" ); document.write( "either $\"-x-7=2\"$ , $\"x%2B7=-2\"$ , $\"highlight%28x=-9%29\"$
\n" ); document.write( "OR
\n" ); document.write( " $\"x%2B7=2\"$ , $\"highlight%28x=-5%29\"$ .\r
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\n" ); document.write( "\n" ); document.write( "Then, the other equation:
\n" ); document.write( " $\"x%28x%2B2%29=15\"$ , after division by 2 on both sides.
\n" ); document.write( " $\"x%5E2%2B2x-15=0\"$
\n" ); document.write( " $\"%28x-3%29%28x%2B5%29=0\"$
\n" ); document.write( " $\"highlight%28x=3%29\"$ OR $\"highlight%28x=-5%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "The value which satisfies BOTH equations is $\"highlight%28highlight%28x=-5%29%29\"$ . \n" ); document.write( "

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