Question

Find an integer ‘a’ such that (-9) + (-a) = 0

Answer 1

$Given \: (-9) + (-a) = 0$

$\blue{( 'a' \:is \: an \: integer )}$

/*Add bothsides of the equation by 9, we get */

$\implies \cancel { (-9) }+\cancel { 9 }+ (-a) = 0 + 9$

$\implies -a = 9$

/* Multiplying bothsides by (-1) , we get */

$\implies - (-a) = -9$

$\implies a = -9$

Therefore.,

$\red{ Value \: of \: a}\green { = -9 }$

•••♪