Question
Find the value of $\frac{ a + b - c }{2 a }$, when $a =5, b =7$ and $c =2$
✓
Answer
$\frac{a+b-c}{2 a}$
$=\frac{5+7-2}{2 \times 5}$
$=\frac{12-2}{10}$
$=\frac{10}{10}$
$=1$
$=\frac{5+7-2}{2 \times 5}$
$=\frac{12-2}{10}$
$=\frac{10}{10}$
$=1$
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