document.write( "Question 484171: Solve the system of equations by using the substitution method.
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document.write( "{y= 4x +1
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document.write( "{2y – 3x= 12\r
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document.write( "Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
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document.write( "a. The solution is ? (simplify your answer. Type an ordered pair).
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document.write( "b. There are infinitely many solutions
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document.write( "c. There is no solution
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Algebra.Com's Answer #331262 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -4 x + 1 y = 1 .............1 \n" ); document.write( "2 y = 12 + 3 x ---------2 \n" ); document.write( "/ 2 = \n" ); document.write( " y = 6 + 1.5 x \n" ); document.write( "Substitute y in (1) \n" ); document.write( "-4 x + 1 ( 6 + 1.5 x ) = 1 \n" ); document.write( "-4 x + 6 + 1.5 x = 1 \n" ); document.write( "-4 x + 1.5 x = 1 -6 \n" ); document.write( "-2.5 x = -5 \n" ); document.write( "/ -2.5 \n" ); document.write( "x= 2 \n" ); document.write( "Plug the value of x in (1) \n" ); document.write( "-4 x + 1 y = 1 \n" ); document.write( "-4 * 2 + 1 y = 1 \n" ); document.write( "-8 + 1 y = 1 \n" ); document.write( "1 y = 9 \n" ); document.write( "/ 1 \n" ); document.write( "y= 9\r \n" ); document.write( "\n" ); document.write( "(2,9) \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |