document.write( "Question 72159: Equation 1: -A + 4B + C = 0 Equation 2: 3A - 2B + C = 0
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document.write( "How do I answer the equations in terms of C? \n" );
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Algebra.Com's Answer #51563 by checkley75(3666) ![]() You can put this solution on YOUR website! -A+4B+C=0 ADD A & SUBTRACT 4B FROM BOTH SIDES. \n" ); document.write( "-A+A+4B-4B+C=A-4B NOW COMBINE LIKE TERMS. THUS: \n" ); document.write( "C=A-4B \n" ); document.write( "---------------------------------------------------------- \n" ); document.write( "3A-2B+C=0 SUBTRACT 3A & ADD 2B TO BOTH SIDES. \n" ); document.write( "C=-3A+2B \n" ); document.write( "------------------------------------------------------------- \n" ); document.write( "I'm assuming the problem is to find the line equation through these 2 po= \n" ); document.write( "ints?????? \n" ); document.write( "If that is so I don't know what they are doing with the ax+bx+c=3D0 for= \n" ); document.write( "mula. \n" ); document.write( "A line through these points (-1,4)(3,-2) has a slope \n" ); document.write( "(y2-y1)/(x2-x1)=3D (-2-4)/(3+1)=3D-6/4=3D-1.5 this is the slope. \n" ); document.write( "Now substitute either set of (x,y) points in the line formula & solve fo= \n" ); document.write( "r the y intercept (b). \n" ); document.write( "4=3D-1*-1.5+b \n" ); document.write( "4=3D1.5+b \n" ); document.write( "b=3D4-1.5 \n" ); document.write( "b=3D2.5 \n" ); document.write( "now we have the line equation of \n" ); document.write( "y=3D-1.5x+2.5 \n" ); document.write( "Now I am lost as to what is asked for when they say a=3D-3/5c & b=3D-2/5= \n" ); document.write( ". \n" ); document.write( "Sorry if this is not what you are looking for.\r \n" ); document.write( "\n" ); document.write( "checkley75. \n" ); document.write( " \n" ); document.write( " |