document.write( "Question 108675: 4x-12y=5
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document.write( "-x+3y=-1
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document.write( "solve by substitution\r
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document.write( "tried it like this 4(3y-1)=5 but it was not comming out right
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Algebra.Com's Answer #79248 by Earlsdon(6294) ![]() You can put this solution on YOUR website! Solve by substitution: \n" ); document.write( "4x-12y = 5 \n" ); document.write( "-x+3y = -1 Solve this for x: \n" ); document.write( "x = 3y+1 and substitute into the 1st equation. \n" ); document.write( "4(3y+1)-12y = 5 Simplify and solve for y. \n" ); document.write( "12y+4-12y = 5 Combine like terms. \n" ); document.write( "(12y-12y)+4 = 5 \n" ); document.write( "4 = 5 NO WAY! The equations are inconsistent ! \n" ); document.write( "This means that there no value of x or y that will work, or there is no solution. The lines represented by these two equations are parallel and, since they don't intersect, there is no solution. \n" ); document.write( " |