document.write( "Question 387274: the perimeter of a triangle is 30 inches. The first side of the triangle is 1 inch longer than the second side. The second side is 7 inches longer than the third side. Where is the length of each side of the triangle? \n" );
document.write( "Let x the third side.Then x+7 is the second,and x+7+1 is the first... \n" );
document.write( "So we have: \n" );
document.write( " x+x+7+x+8=30 \n" );
document.write( " Then 3x+15=30 \n" );
document.write( " 3x=30-15 \n" );
document.write( " 3x=15 \n" );
document.write( " x=15/3 \n" );
document.write( " x=5 \n" );
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