Question

What is the simplified form of the quantity of x plus 7, all over 2 − the quantity of x plus 4, all over 2?

Answer 1

we know that the expression is equal to

$\frac{x+7}{2}- \frac{x+4}{2}$

Subtract the two fractions

$\frac{x+7}{2}- \frac{x+4}{2}=\frac{(x+7)-(x+4)}{2} \\\\=\frac{x+7-x-4}{2}\\\\= \frac{7-4}{2}\\\\= \frac{3}{2}$

therefore

the answer is

the quantity of $3$ over $2$

Answer 2

(x + 7)/2 - (x + 4)/2 = (x + 7 - (x + 4)/2 = (x + 7 - x - 4)/2 = 3/2