Question

the sum of two rational numbers is -7 if one of them is -15/4 what is the other number
pls provide steps too

Answer 1

Step-by-step explanation:

let other rational number is x

$x + ( \frac{ - 15}{4} ) = - 7$

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

$x = \frac{ - 28 + 15}{4} = \frac{ - 13}{4}$

Answer 2

Answer:

$\frac{ - 13}{4}$

Step-by-step explanation:

THIS IS THE EXPLANATION:

Let the number be x.

Now, A/Q,

$= > x + ( \frac{ - 15}{4}) = - 7 \\ = > x = - 7- ( \frac{ - 15}{4} ) \\ = > x = - 7 + \frac{15}{4} \\ = > x = \frac{4 \times ( - 7) + 15}{4} \\ = > x = \frac{ - 28 + 15}{4} \\ = > x = \frac{ - 13}{4}$

Proof:

$\frac{ - 13}{4} + ( \frac{ - 15}{4} ) \\ = \frac{ - 13}{4} - \frac{15}{4} \\ = \frac{ - 13 - 15}{4} \\ = \frac{ - 28}{4} \\ = - 7$

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