document.write( "Question 614995: find two numbers such that the sum of twice the first and thrice the second is 92 and four times the first exceeds 7 times the second by 2 \n" ); document.write( "
Algebra.Com's Answer #386902 by ankor@dixie-net.com(22740)\"\" \"About 
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find two numbers
\n" ); document.write( "a & b
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\n" ); document.write( "such that the sum of twice the first and thrice the second is 92
\n" ); document.write( "2a + 3b = 92
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\n" ); document.write( "and four times the first exceeds 7 times the second by 2
\n" ); document.write( "4a = 7b + 2
\n" ); document.write( "4a - 7b = 2
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\n" ); document.write( "Multiply the 1st equation by 2, subtract from the above equation
\n" ); document.write( "4a - 7b = 2
\n" ); document.write( "4a + 6b = 184
\n" ); document.write( "---------------subtraction eliminates a, find b
\n" ); document.write( "0 - 13b = -182
\n" ); document.write( "b = \"%28-182%29%2F%28-13%29\"
\n" ); document.write( "b = +14 is the 2nd number
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\n" ); document.write( "Find the 1st number using the 1st original equation
\n" ); document.write( "2a + 3(14) = 92
\n" ); document.write( "2a + 42 = 92
\n" ); document.write( "2a = 92 - 42
\n" ); document.write( "2a = 50
\n" ); document.write( "a = 50/2
\n" ); document.write( "a = 25 is the 1st number
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\n" ); document.write( "Check solutions in the 2nd original equation
\n" ); document.write( "4(25) = 7(14) + 2
\n" ); document.write( "100 = 98 + 2; confirms our solutions of a=25 and b=14
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