Question

Tentukan nilai n jika n anggota bilangan bulat.
a.n+(-3)=-8
b.-n+9(-5)=10

Answer 1

A. n+(-3) = 8
    n - 3=8
        n= 8+3 + 11

b. -n+9(-5) = 10
    -n - 45 = 10
     -n = 10 + 45
     -n = 55
     n = -55

Answer 2

A. n+(-3)=-8 (dibalikkin) n = -3 + (-8) = -11 jadi n = -11 b.) -n+9(-5)=10 = -n - 45 = 10 (balikkin lagi) -n = 10 - 45 jadi n = -35