document.write( "Question 252940: Find the solution to each system by the substitution method. 10x + 3y =8 and 2x + y = 2 \n" ); document.write( "
Algebra.Com's Answer #185097 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! Here are the equations: \n" ); document.write( "(i) 10x + 3y = 8 \n" ); document.write( "(ii) 2x + y = 2 \n" ); document.write( "Solve (ii) for y. It is easiest. \n" ); document.write( "(i) 10x + 3y = 8 \n" ); document.write( "(iii) y = -2x + 2 \n" ); document.write( "substitute (iii) into (i) to get \n" ); document.write( "10x + 3(-2x+2) = 8 \n" ); document.write( "10x - 6x + 6 = 8 \n" ); document.write( "4X = 2 \n" ); document.write( "X = 1/2 \n" ); document.write( "find Y. \n" ); document.write( "Y = 1. \n" ); document.write( "(1/2, 1) \n" ); document.write( " |