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5y = 6+10
5y = 16
y = 3,2
2. 1/2 x = 2-3
1/2 x = -1
x = -2
3. -20+15y = 23
15y = 23 + 20
15y = 45
y = 3
5.24-5y = 30-3y
-5y+3y = 30 - 24
-2y = 6
y = -3
Nomor 2.
Nomor 3.
Nomor 4.