Question

10) The sum of the two rational numbers is -8. If one of the numbers is
-15/7, find the other.​

Answer 1

Answer:

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Step-by-step explanation:

x + (-15/7) = -8 The LCM of 7 and 1 is 7 Consider (-8/1) = (-8/1) × (7/7) = (-56/7) On substituting x + (-15/7) = (-56/7) x = (-56/7) – (-15/7) x = (-56/7) + (15/7) x = (-56 + 15)/7 x = (-41/7)Read more on Sarthaks.com - https://www.sarthaks.com/682252/the-sum-of-two-rational-numbers-is-8-if-one-of-the-numbers-is-15-7-find-the-other

Answer 2

Answer:

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

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

$lcm \: of \: 7 \: \: and \: 1 = 7$

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

$x = \frac{ - 56}{7} + \frac{15}{7}$

$x = \frac{ - 41}{7}$

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