Question

Tolong dong besok dikumpulin
1.tentukan nilai n jika n anggota himpunan bilangan bulat
a.n + (-3) = -8
b.-n + 9 + (-5) = 10
c.2n + (-16) = 0
d.3n + (-7) + 22 = 6
2.sederhanakanlah!
a. 2×a
b.5×(-a)
c.a×b×c
d.a(-b) (-c)
e.(-a) (-b) (-c)
f.-15×ab
3.hitunglah!
a.-1×(-3)×(2)×(-5)
b.-5×(-1)×(-3)×(+2)×(-5)
c.(-3)²×(-4)²
d.(-3)²×(-2)³×(-1)³
pakai caranya ya tolong...

Answer 1

1. n = -8 + 3
       = -5
2. - n = 10 - 9 + 5
   - n = 6
     n = -6
3. 2n = 16
     n = 16/2
     n = 8
4. 3n = 6 -22 + 7
    3n = -9
       n = -3
--------------------------
 1. 2a
2. -5a
3. abc
4. abc
5. -abc
6. - 15ab
-----------------
1. -30
2. 150
3. 9 x 16 = 144
4. 72