document.write( "Question 985394: Insert parentheses to make the expression equal 20 7+3x3-1+7 \n" ); document.write( "
Algebra.Com's Answer #606282 by macston(5194)\"\" \"About 
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\n" ); document.write( "20=7+(3*(3-1))+7
\n" ); document.write( "20=7+(3*2)+7
\n" ); document.write( "20=7+6+7
\n" ); document.write( "20=20
\n" ); document.write( "
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