b.5x/2=50
2.Periksa apakah nilai yg ada di dlmkurung adlh pnyelesaian untuk persamaan berikut
a.n+5=19(n=1)
b.7n+5=19(n=-2)
c.4n+5=19(n=2)
d.4p-3=13(p=1)
e.4p-3=13(p=-4)
f.4p-3=13(p=0)
3.Tentukan nilai x
a.3x+4=7
b.6x-5=2x+11
c.3(2x-1)=5(x-1)
d.3=4(x-2)=3(x-4)=2
e.x(4x)=3(x4)-4
f.3(2x+1)-4(x-2)=0
1.a.3x=15/2
1.
a. 3x = 15/2
x = 15/2 x 3
x = 45/2
x = 22 1/2
b. 5x/2 = 50
5x = 100
x = 20
2.
a. salah(n = 14)
b. salah(n = 2)
c. salah(n = 3 2/4)
d. salah(n = 4)
e. salah(n = 4)
3.
a. 3x + 4 = 7
3x = 7 – 4
3x = 3
x = 1
b. 6x – 5 = 2x + 11
6x – 2x = 11 + 5
4x = 16
x = 4