Решите уровнение |х|+2=5; |х|-3=7; 4+|х|=10; 9-|х|=9; 0,8+|х|=0,92; |х|-0,6=1;...

Question

Решите уровнение |х|+2=5; |х|-3=7; 4+|х|=10; 9-|х|=9; 0,8+|х|=0,92; |х|-0,6=1; 7,2•|х|=|-2,88|; |х|•|-4,1|=|20,5|.

Answer 1

\x\=5-2
\x\=3
x=3
x=-3

\x\=7+3
\x\=10
x=10
x=-10

\x\=10-4
\x\=6
x=6
x=-6

\x\=9-9
\x\=0
x=0

\x\=0.92-0.8
\x\=0.12
x=0.12
x=-0.12

\x\=1+0.6
\x\=1.6
x=1.6
x=-1.6

\x\=2.88/7.2
\x\=0.4
x=0.4
x=-0.4

\x\=20.5/4.1
\x\=5
x=5
x=-5

Comments

исправила спасибо

Answer 2

Решение урАвнений:
|x|+2=5
|x|=3
x1=3;  x2=-3
-----------------------
|x|-3=7
|x|=10
x1=10; x2=-10
------------------------
4+|x|=10
|x|=6
x1=6; x2=-6
----------------------
9-|x|=9
x=0
----------------------
0,8+|x|=0,92
|x|=0,12
x1=0,12;  x2=-0,12
----------------------
|x|-0,6=1
|x|=1,6
x1=1,6; x2=-1,6
---------------------
7,2*|x|=|-2,88|
7,2*|x|=2,88
|x|=2,88 : 7,2
|x|=0,4
x1=0,4; x2=-0,4
----------------------
|x|*|-4,1|=|20,5|
4,1*|x|=20,5
|x|=20,5 : 4,1
|x| =5
x1=5; x2=-5