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A+B=88 A-B=44 THEN A/ B= ?

 Jan 21, 2019
 #1
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A+B=88

A-B=44

THEN A/ B= ?

 

\(\begin{array}{|rcll|} \hline A-B &=& 44 \\\\ A+B &=& 88 \\ &=& 2\cdot 44 \quad & | \quad A-B = 44 \\ &=& 2\cdot (A-B) \\ A+B &=& 2\cdot (A-B) \\ A+B &=& 2A-2B \\ B+2B &=& 2A-A \\ 3B &=& A \\ A &=& 3B \\ \mathbf{\dfrac{A}{B}} &\mathbf{=}& \mathbf{3} \\ \hline \end{array}\)

 

laugh

 Jan 21, 2019

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