document.write( "Question 500704: how do you work 45r-7=56r-73
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Algebra.Com's Answer #338226 by oberobic(2304) $\"\"$ $\"About$

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45r - 7 = 56r -73
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\n" ); document.write( "subtract 56r from both sides
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\n" ); document.write( "(45r -56r) -7 = (56r -56r) -73
\n" ); document.write( "-11r -7 = 0 -73
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\n" ); document.write( "Add 7 to both sides
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\n" ); document.write( "-11r (-7 +7) = -73 +7
\n" ); document.write( "-11r = -66
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\n" ); document.write( "Divide both sides by -11
\n" ); document.write( "-11r/-11 = -66/-11
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\n" ); document.write( "Note that the -/- results in +.
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\n" ); document.write( "r = 6
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\n" ); document.write( "Always check your work.
\n" ); document.write( "In this case plug the value into the equations to see what falls out.
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\n" ); document.write( "\n" ); document.write( "45r - 7 = 56r -73
\n" ); document.write( "(45*6) -7 = (56*6) - 73 ??
\n" ); document.write( "45*6 -7 = 263
\n" ); document.write( "56*6 -73 = 263
\n" ); document.write( "Correct!.
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\n" ); document.write( "Answer: r=6
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\n" ); document.write( "Done. \n" ); document.write( "

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