document.write( "Question 274486: perimeter of a triangle
\n" ); document.write( "The perimeter of the triangle shows the accompanying figure 12 meters
\n" ); document.write( "Determine the value of x, x+1, x+2 by solving the equation
\n" ); document.write( "x+(x+1)+(x+2)=12 \n" ); document.write( "
Algebra.Com's Answer #200318 by anantha(86)\"\" \"About 
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perimeter=sum of the three sides of a triangle
\n" ); document.write( "here the sides are x,x+1 and x+2 means
\n" ); document.write( "1st side= x
\n" ); document.write( "2nd side=x+1
\n" ); document.write( "and 3rd side=x+2
\n" ); document.write( "perimeter=1st side+2nd side+3rd side
\n" ); document.write( "given perimeter=12
\n" ); document.write( "12=(x)+(x+1)+(x+2)
\n" ); document.write( "12=x+x+1+x+2
\n" ); document.write( "12=3x+3
\n" ); document.write( "isolate x subtract 3 on both sides
\n" ); document.write( "12-3=3x+3-3
\n" ); document.write( "9=3x
\n" ); document.write( "dividing both sides by 3
\n" ); document.write( "9/3=3x/3
\n" ); document.write( "3=x
\n" ); document.write( "1st side=3
\n" ); document.write( "2nd side=x+1=3+1=4
\n" ); document.write( "3rd side=x+2=3+2=5\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "check:
\n" ); document.write( "1st side+2nd side +3rd side=perimeter
\n" ); document.write( "perimeter=3+4+5=12 which is given in our problem\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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