document.write( "Question 178766: -7+4r=-15 what is the answer with showing work \n" ); document.write( "
Algebra.Com's Answer #133755 by Mathtut(3670)\"\" \"About 
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-7+4r=-15
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\n" ); document.write( "4r=-8.....added 7 to both sides
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\n" ); document.write( "\"highlight%28r=-2%29\"divided both sides by 4 to isolate the variable r
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