document.write( "Question 463648: Let me try to solve your system of equation 4x + 4y = 16 and 2x + y = 10 using the elimination method.
\n" ); document.write( "•Multiply the equation 2x + y = 10 by -2; -4x - 2y = -10.
\n" ); document.write( "•Add the equation 4x + 4y = 16 and the equation -4x - 2y = -10 together; 2y = 6.
\n" ); document.write( "•Isolate the variable y by dividing both sides of the equation by 2; y = 3.
\n" ); document.write( "Can anyone tell us why I multiplied the equation 2x + y = 10 by -2?
\n" ); document.write( "is this correct so far? please help!! \n" ); document.write( "
Algebra.Com's Answer #317626 by Alan3354(69443)\"\" \"About 
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Let me try to solve your system of equation 4x + 4y = 16 and 2x + y = 10 using the elimination method.
\n" ); document.write( "•Multiply the equation 2x + y = 10 by -2; -4x - 2y = -10.
\n" ); document.write( "•Add the equation
\n" ); document.write( "4x + 4y = 16 and the equation
\n" ); document.write( "-4x - 2y = -10 together;
\n" ); document.write( "-----------------
\n" ); document.write( "2y = 6.
\n" ); document.write( "•Isolate the variable y by dividing both sides of the equation by 2; y = 3.
\n" ); document.write( "Can anyone tell us why I multiplied the equation 2x + y = 10 by -2?
\n" ); document.write( "To get the coefficients of x to match.
\n" ); document.write( "--------------
\n" ); document.write( "is this correct so far? please help!!
\n" ); document.write( "It's correct, y = 3
\n" ); document.write( "-------------
\n" ); document.write( "Sub for y in 2x + y = 10
\n" ); document.write( "2x + 3 = 10
\n" ); document.write( "2x = 7
\n" ); document.write( "x = 3.5 or 7/2
\n" ); document.write( "That's all
\n" ); document.write( " \n" ); document.write( "
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