document.write( "Question 967313: 7x+10y=36
\n" ); document.write( "y=2x+9\r
\n" ); document.write( "\n" ); document.write( "solving systems of equations with substitution.
\n" ); document.write( "I have been practicing these and i am pretty sure my math is correct but i need help i am doing khan academy and the answers i got are x= -2 and y= 2.2
\n" ); document.write( "please help!
\n" ); document.write( "sincerely, kennedy
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Algebra.Com's Answer #591208 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
substitute for y.
\n" ); document.write( "Solve for the value of y, fist.
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