The solution for equations a+b =14 and a-b = 2
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If A+B = 28, A-B = 14, then what is A/B?
A + B = 28, A - B = 14:
In A - B = 14 then A = 14 + B substitute value of A into first equation:
Where A + B = 28: then 14 + B + B = 28, collect terms 2B = 14; B = 7
Sub value of B: A - B = 14; A - 7 = 14 then A = 21
Check: A + B = 28; 21 + 7 = 28; 28 = 28
Thus for A / B = 21 / 7 = 3
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