document.write( "Question 174589: c. 4x + y =17, 2x + 3y=21
\n" ); document.write( "d. 18x + y=42,6x-3y=-6
\n" ); document.write( "Please help I am having a brain cramp \n" ); document.write( "

Algebra.Com's Answer #129614 by checkley77(12844) $\"\"$ $\"About$

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c. 4x + y =17 or y=-4x+17 (red line)
\n" ); document.write( "2x + 3y=21 or 3y=-2x+21 or y=-2x/3+21/3 or y=-2x/3+7 (green line).
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-4x+%2B17%2C+-2x%2F3+%2B7%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -4x +17 and -2x/3 +7).
\n" ); document.write( "ANSWER (3,5)
\n" ); document.write( "d. 18x + y=42 or y=-18x+42 (red line)
\n" ); document.write( "6x-3y=-6 or -3y=-6x-6 or y=-6x/-3-6/-3 or y=2x+2 (green line).
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+50%2C+-18x+%2B42%2C+2x+%2B2%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 50, of TWO functions -18x +42 and 2x +2).
\n" ); document.write( "ANSWER (2,6)
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