Question

find the value of -9+5-7+10

Answer 1

AnsWer

$- 9 + 5 - 7 + 10$

$= (- 9 + 5) - (7 + 10)$

Rule :

• $\boxed{( - )( + ) = \pmb{( - )}}$

so,

$= (- 14 ) - 17$

$= - 14 - 17$

Attention !! Rules :-

• $\boxed{( - )( - ) = \pmb{( + )}}$

$= \bf - 21 \: \sf(answer \: \: \:...)$

Answer 2

Answer:

Answer:So, to maintain the equality we need to multiply the numerator by the same number, i.e. , 5 . So, as we