Question

what should be subtracted from 7 upon 4 to get -2​

Answer 1

Answer:

7-7+7*7= -2 correct answer

Answer 2

Solution :

Let the unknown number be x

$\frac{7}{4} - x = - 2 \\ \\ x = \frac{7}{4} + 2 \\ \\ x = \frac{7 + 8}{4} \\ \\ x = \frac{15}{4}$

So, 15/4 must be subtracted from 7/4 to get -2

Verification :

$\frac{7}{4} - \frac{15}{4} = - 2 \\ \\ \implies \frac{7 - 15}{4} = - 2 \\ \\ \implies \frac{ - 8}{4} = - 2 \\ \\ \implies \: - 2 = - 2$

Hence, proved