gransazer5806 gransazer5806

31-01-2018
Mathematics

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If 7a+20b=28-b,what is the value of a in terms of b?

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anchitthawi anchitthawi

03-02-2018

7a+20b = 28-b
7a = 28-b-20b
7a = 28-21b
a= 28/7 - 21/7 b = 4-3b

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