document.write( "Question 452121: I need some help with the substitution method.
\n" ); document.write( "9x +8y= -21
\n" ); document.write( "-6x +y=33
\n" ); document.write( "I can't figure out the ordered pair. \n" ); document.write( "

Algebra.Com's Answer #310798 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Note that the second equation already has one of the variables with a coefficient of 1, namely the

. So the simplest strategy would be to solve the second equation for

in terms of everything else by adding

to both sides:\r
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\n" ); document.write( "\n" ); document.write( "Now that you have an expression in

that is equal to

you can substitute back into the first equation:\r
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\n" ); document.write( "\n" ); document.write( "Now you have a single equation in a single variable that can be solved by ordinary means. Solve for

. Then substitute the calculated value of

back into the second given equation and solve for the value of

. Your ordered pair will be your two calculated values in order

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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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