1. Rozwiąż równania:
a) 2|x+1| = x+1
b) 3-|x+2| = -4
c) -3|2x+1| = -12
a)2x - x = 1 - 2
x = -1
b) 3 -x -2 = 4
-x= 3 | : (-)
x= -3
c) -6x -3 = -12
-6x= -9 | :(-6)
x= 1,5
a) 2|x+1| = x+12x+1=x+1
x=0
3-x+2=-4
-x=-9
x=9
c) -3|2x+1| = -12-6x+1=-12
6x=13
x=13/6
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a)2x - x = 1 - 2
x = -1
b) 3 -x -2 = 4
-x= 3 | : (-)
x= -3
c) -6x -3 = -12
-6x= -9 | :(-6)
x= 1,5
a) 2|x+1| = x+1
2x+1=x+1
x=0
b) 3-|x+2| = -4
3-x+2=-4
-x=-9
x=9
c) -3|2x+1| = -12
-6x+1=-12
6x=13
x=13/6