Answer: b = 380/13; or, 29.2307692307692308 ; round to: 29.231 .
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Explanation:
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Method 1:
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(1.3) b = 38 ;
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Divide each side by "(1.3)" ; to isolate "b" on one side of the equation; and to solve for "b" ;
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(1.3)b / (1.3) = 38 / (1.3) ;
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b = 29.2307692307692308 ; or write as: 29.231 .
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Other method: (13/10) * b = 38 ; rewrite, substituting: "(380/10)" for "38" ;
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(13/10) * b = (380/10) ;
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Divide EACH SIDE of the equation by: "(13/10)" to isolate "b" on one side of the equation; and to solve for "b" ;
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[(13/10)b] / (13/10) = (380/10) / (13/10) ;
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b = (380/10) / (13/10) ;
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(380/10) / (13/10) = (380/10) *(10/13) ; The "10s" cancel out to "1";
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Rewrite as: (380)* (1/13) = 380 / 13; or; 29.2307692307692308;
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Answer: b = 380/13; or; 29.230769230769230 ; round to 29.231 .
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