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What is -13= r/9 + 8
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What is -13= r/9 + 8

User Omar Tammam
by
5.9k points

1 Answer

3 votes

Answer:

r= -189

Explanation:


-13= r/9 + 8\\\\-13=(r)/(9)+8\\\\Switch\:sides\\(r)/(9)+8=-13\\\\\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}\\(r)/(9)+8-8=-13-8\\\\Simplify\\(r)/(9)=-21\\\\\mathrm{Multiply\:both\:sides\:by\:}9\\(9r)/(9)=9\left(-21\right)\\\\Simplify\\r=-189

User Sunny Sultan
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