Question

the sum of two numbers is -10 and one of the numbers is -5/9 what is the other number

Answer 1

Answer:

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Answer 2

Answer:

x= -85/9 . therefore the unknown no. is -85/9

Step-by-step explanation:

Let the unknown no. be X

sum = -10

first no. = -5/9

first no. + second no. =sum

-5/9 + x= -10

transfering -5/9 to the right side gives +5/9

$x \: = - 10 \: + \frac{5}{9}$

Take lcm of 1 and 9

$x = \frac{ - 90}{9} + \frac{5}{9}$

$x = \frac{ - 90 + 5}{9}$

$x = \frac{ - 85}{9}$

Check

Lhs=Rhs

$\frac{ - 5}{9} + ( \frac{ - 85}{9} ) = - 10$

minus minus becomes plus

$\frac{ - 5 - 85}{9} = - 10$

$\frac{ - 90}{9} = - 10$

divide 90 from 9 and put a minus sign along with the answer

$- 10 = - 10$