Question

what should be subtracted from 14 to get 8.1/7​

Answer 1

Answer:

Let n = the unknown number which must be subtracted from -7 to get 14. We can translate this statement mathematically into the following equation to be solved for the variable n:

-7 - n = 14

To begin isolating n on the left side of the equation, thus solving for n, add 7 to both sides as follows:

-7 + 7 - n = 14 + 7

0 - n = 21

-n = 21

Now, to solve for n, multiply both sides by -1:

(-1)(-n) = (-1)(21)

(-1)[(-1)(n)] = -21

(-1)(-1)(n) = -21

(1)(n) = -21

n = -21

CHECK:

-7 - n = 14

-7 - (-21) = 14

-7 + 21 = 14

14 = 14

Therefore, n = -21 is the desired number necessary to subtract from -7 to get 14.

Answer 2

$\huge{\fbox{\pink\bigstar\blue{answer}}}$

15.16

$\huge\mathcal\red{Solution:-}$

14 + $\huge\frac{8.1}{7}$

= 15.16

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