Question

the sum of two rational number is -8. if one of the numbers is -10/7 , find the other number...??plz help @_@

Answer 1

$\frac{ - 10}{7} + x = - 8 \\ x = - 8 + \frac{10}{7} \\ x = \frac{ - 4 6}{7}$

Answer 2

Bonjour!!

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Let the second number be x

By given,
-10/7 + x = -8
-10 + 7x/7 = -8
-10 + 7x = -56
7x = -46
x = -46/7