a)3(x-1)-3= 3x-3-3 = 3x-6
b)6y+2(y+1) = 6x + 2y + 2
6y+2(y+1) - 6x - 2y - 2 = 0c)2t+2-t = t+2
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a)3(x-1)-3= 3x-3-3 = 3x-6
b)6y+2(y+1) = 6x + 2y + 2
6y+2(y+1) - 6x - 2y - 2 = 0
c)2t+2-t = t+2
3x=6 /:3
x=2
b) 6y+2y+2=0
8y= -2 /:8
y= -0,25
c) -2t = 2 /:(-2)
t= -1