document.write( "Question 771225: in my maths homework i have been asked to solve a equation using elimination or substitution with the rules x=2y+3 and x=2.5y+2 to work out the coordinates how may i do this? \n" ); document.write( "
Algebra.Com's Answer #470056 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! You can choose to eliminate y or to eliminate x. If you choose to eliminate x, then simply subtract one equation from the other equation, since both equations contain 1*x. You would then simply solve for y. Use this value for y to then evaluate the value of x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-x=2y+3-(2.5y+2) \n" ); document.write( "0=2y+3-2.5y-2 \n" ); document.write( "0=-0.5y+1 \n" ); document.write( "0.5y=1 \n" ); document.write( "y=2 \n" ); document.write( "Now evaluate x. \n" ); document.write( " |