Question

The sum of two rational number is -4 If one of then is -11/5, find the other

Answer 1

Given

$\bold{Sum \ of \ 2 \ rational \ numbers} = -4\\\\\bold{One \ of \ the \ rational \ number} = \dfrac{-11}{5}$

Let the other number be x

$\implies \dfrac{-11}{5}+ x = -4\\\\\implies x = -4 + \dfrac{11}{5}\\ \\\implies x = \dfrac{-20+11}{5} \\\\\implies x = \dfrac{-9}{5}$

$\boxed{\boxed{\bold{Therefore, \ the \ other \ number \ is \ \frac{-9}{5}}}}}$

                                                   

Answer 2

$\mathtt{\huge{ \fbox{Solution :)}}}$

Given ,

The sum of two rational number is -4 and one number is -11/5

Let , the unknown number be " x "

Thus ,

➡-4 + x = -11/5

➡x = -11/5 + 4

➡x = (-11 + 20)/5

➡x = 9/5

Hence , the value of unknown number is 9/5

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