document.write( "Question 944459: what is 2y=6x+4 and 2x+y=7 using substitution ? \n" ); document.write( "
Algebra.Com's Answer #575877 by macston(5194)\"\" \"About 
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2y=6x+4 divide both sides by 2
\n" ); document.write( "y=3x+2 Use this to substitute for y in second equation
\n" ); document.write( "2x+y=7
\n" ); document.write( "2x+(3x+2)=7
\n" ); document.write( "5x+2=7 Subtract 2 from each side
\n" ); document.write( "5x=5
\n" ); document.write( "x=1 ANSWER X is 1
\n" ); document.write( "2y=6x+4
\n" ); document.write( "2y=6+4
\n" ); document.write( "2y=10
\n" ); document.write( "y=5 ANSWER Y is 5
\n" ); document.write( "CHECK
\n" ); document.write( "2x+y=7
\n" ); document.write( "2(1)+5=7
\n" ); document.write( "2+5=7
\n" ); document.write( "7=7
\n" ); document.write( " \n" ); document.write( "
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