Question

c -( 29+ 31 ) = 100​

Answer 1

с-60=100

с=60+100с= 160

Answer 2

$c - (29 + 31) = 100$

$c - 60 = 100$

$c = 100 + 60$

$c = 160$

проверяем:

$160 - (29 + 31) = 100$

$160 - 60 = 100$

$100 = 100$