Question

The sum of two rational number is -3. If one the number is 7/8, find the other.​

Answer 1

Answer:

Let the unknown value be = 'x'

$\frac{7}{8} + x = (- 3) \\ \\ = \frac{7 + 8x}{8} = ( - 3) \\ \\ = 7 + 8x = ( - 3) \times 8 \\ \\ = 7 + 8x = ( - 24) \\ \\ = 8x = ( - 24) - 7 \\ \\ = 8x = ( - 31) \\ \\ = x = \frac{ - 31}{8}$

Answer 2

Given :

• Sum of two rational numbers = -3
• One of the number = 7/8

To find :

• The other number = ?

Solution :

Let:-

• The other number = x

∴ 7/8 + x = -3

⇒x = -3 - 7/8

⇒x = -24 -7/8

⇒x = -31/8

Answer :

• The other number is -31/8

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