\(a. 5.(-3)+189:(-9)-5\)
\(= (-15) + (-21) -5\)
\(=(-36)-5\)
\(=-41\)
a) 5.(-3) + 189 : ( -9 ) -5
= -15 -21 -5
= - 41
b) [ 45 . ( -2 ) - ( -3 + 9.2 )] : ( -5 )
= [ -90 - (-3 + 18 )] : ( -5 )
= [ -90 + 3 -18 ] : ( -5 )
= -105 : ( - 5 )
= 21
c) -175 : [( -14 ) . 3 - ( -11 ) .7 ]
= -175 : [ -42 + 77 ]
= -175 : 35
= -5
d) [ ( -12 ) . ( -5 ) + 4 . ( -13 )] : ( -4 )
= [ 60 - 52 ] : ( -4 )
= 8 : ( -4 )
= -2