rozwiąż równanie: 2+|x+3|=9 rozwiąż nierówności:a) |x-1|+3<5...b)|3-x|+2<5
2+[x+3] = 9
2+x+3 = 9
x=9-2-3
x = 4
Ix+3I=7
x+3=7
x=4
a
Ix-1I<2
1-x<2
-x<1
x>-1
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2+[x+3] = 9
2+x+3 = 9
x=9-2-3
x = 4
Ix+3I=7
x+3=7
x=4
a
Ix-1I<2
1-x<2
-x<1
x>-1