document.write( "Question 1051746: Which system of equations cannot be
\n" ); document.write( "directly solved by applying the elimination
\n" ); document.write( "method?
\n" ); document.write( "A. 12𝑥 − 11𝑦 = −4
\n" ); document.write( " −6𝑥 − 11𝑦 = 7
\n" ); document.write( "B. 𝑥 − 11𝑦 = −6
\n" ); document.write( " 𝑥 + 12𝑦 = −7
\n" ); document.write( "C. 7𝑥 + 11𝑦 = 12
\n" ); document.write( " −6𝑥 − 4𝑦 = −21
\n" ); document.write( "D. 𝑥 + 11𝑦 = 7
\n" ); document.write( " 11𝑦 − 12𝑥 = 4
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #667200 by Fombitz(32388) $\"\"$ $\"About$

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Look at the x and y coefficients for each system.
\n" ); document.write( "The ones that have equal x or y coefficients can be solved directly.
\n" ); document.write( "Example: For A, both equations have $\"-11y\"$ .
\n" ); document.write( "So this system can be solved directly.
\n" ); document.write( "Carefully look through the remaining three and find the one which doesn't have matching x or y coefficients. \n" ); document.write( "

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