а)||8-x|-3|+2=15
б)||x|+5|-4=9
||8-x|-3|+2=15
||8-x|-3|=13
|8-x|-3=13 ∨ |8-x|-3=-13
|8-x|=16 ∨ |8-x|=-10
8-x=16 ∨ 8-x=-16
-x=8 ∨ -x=-24
x=-8 ∨ x=24
||x|+5|-4=9
||x|+5|=13
|x|+5=13 ∨ |x|+5=-13
|x|=8 ∨ |x|=-18
x=-8 ∨ x=8
а)
|8-x|-3=13 |8-x|-3=-13
|8-x|=16 |8-x|=-10
8-x=16 8-x=-16
-x=8 -x=-24
x=-8 x=24
|x|+5=13 |x|+5=-13
|x|=8 |x|=-18
x=-8 x=8
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Answers & Comments
||8-x|-3|+2=15
||8-x|-3|=13
|8-x|-3=13 ∨ |8-x|-3=-13
|8-x|=16 ∨ |8-x|=-10
8-x=16 ∨ 8-x=-16
-x=8 ∨ -x=-24
x=-8 ∨ x=24
||x|+5|-4=9
||x|+5|=13
|x|+5=13 ∨ |x|+5=-13
|x|=8 ∨ |x|=-18
x=-8 ∨ x=8
а)
||8-x|-3|+2=15
||8-x|-3|=13
|8-x|-3=13 |8-x|-3=-13
|8-x|=16 |8-x|=-10
8-x=16 8-x=-16
-x=8 -x=-24
x=-8 x=24
||x|+5|-4=9
||x|+5|=13
|x|+5=13 |x|+5=-13
|x|=8 |x|=-18
x=-8 x=8