Question

calcule
a) [ -7]
b) [n -3]
c)[n-5]
d)(-3). (-5)
e)[-9]+[-7]
f)-[-7]
g) [-2+5]
h) [2×-1] quanto ×=-5

Answer 1

a) -7
b) n-3
c) n-5
d)15
e) -16
f) 7
g) 3
h)-2x
(-2)•(-5)
10