Question

Determine o valor de N em cada item:
a) n . 3 =-12
b) (-9) . (-12)= n
c) -5 . n = 25
d) 16: n = -8
e) -7 . n = -8
f) n : 6 = -2
g) n²= 9
h)4 . [n+(-2)] = 0

Answer 1

a)3n=-12 n=-12/3 n=-4
b)(-9) . (-12)=108 n=108
c) -5n=25.(-1) 5n=-25 n=-25/5=5
d)16/n=-8 n=-8.16 n=128
e) -7n=-8.(-1) 7n=8 n=8/7
f) n/6=-2 n=-2.6 n=-12
g) n^2=9 n= + ou -3
h) 4.(n-2)=0 4n-8=0 4n=0+8 n=8/4 n=2