document.write( "Question 100108: x-7+2=12 \n" ); document.write( "

Algebra.Com's Answer #72881 by tutorcecilia(2152) $\"\"$ $\"About$

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x-7+2=12
\n" ); document.write( "x-5=12 [combine like-terms if possible]
\n" ); document.write( "x-5+5=12+5 [isolate the unknown variable (x)]
\n" ); document.write( "x=17
\n" ); document.write( ".
\n" ); document.write( "Check by plugging (x=17) back into the original equation and solving:
\n" ); document.write( "x-7+2=12
\n" ); document.write( "17-7+2=12
\n" ); document.write( "10+2=12
\n" ); document.write( "12=12 [checks out] \n" ); document.write( "

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