document.write( "Question 995362: The sum of the digits of a two digit number is 12. The tens digit is 2 less than the units digit. Find the number.
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Algebra.Com's Answer #614110 by addingup(3677)\"\" \"About 
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10x+y= 12
\n" ); document.write( "10x= y-2 Let's go back to the first equation and plug in this value for 10x
\n" ); document.write( "y-2+y= 12 Add 2 on both sides and ys on left
\n" ); document.write( "2y= 14 Divide both sides by 2
\n" ); document.write( "y= 7
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\n" ); document.write( "The problem says:
\n" ); document.write( "10x= y-2 And now we say that y= 7, so 10x= 7-2= 5. Now back to the first equation with these values:
\n" ); document.write( "10(5)+7= 57 is your number.
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