document.write( "Question 573803: Find a number such that twice the number increased by seven is the same as four times the number decreased by three. \n" ); document.write( "
Algebra.Com's Answer #368870 by mathsmiles(68)\"\" \"About 
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Let's let X be the number we're looking for.\r
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\n" ); document.write( "\n" ); document.write( "The problem says if we take twice the number increased by 7 or ...
\n" ); document.write( "2X + 7
\n" ); document.write( "it should equal four times the number decreased by 3 ...
\n" ); document.write( "4X - 3\r
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\n" ); document.write( "\n" ); document.write( "Let's find it!\r
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\n" ); document.write( "\n" ); document.write( "2X + 7 = 4X - 3
\n" ); document.write( "Subtract 2X from each side:
\n" ); document.write( "7 = 2X - 3
\n" ); document.write( "Add 3 to each side:
\n" ); document.write( "10 = 2X
\n" ); document.write( "Divide both sides by 2
\n" ); document.write( "5 = X\r
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\n" ); document.write( "\n" ); document.write( "Checking:
\n" ); document.write( "2(5) + 7 = 4(5) - 3?
\n" ); document.write( "10 + 7 = 20 - 3?
\n" ); document.write( "17 = 17 Correct!
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