Ответы на вопрос:
ответ:
пошаговое объяснение:
18 = 3y + 3
3y = 18 - 3
3y = 15
y = 15 : 3
y = 5
-----------
6x + 10 = 5x + 15
6x - 5x = 15 - 10
x = 5
------------
-5n - 16 = 3n
-5n - 3n = 16
-8n = 16
n = 16 : (-8)
n = -2
--------------
8 - 5y = 10 - 4y
5y - 4y = 8 - 10
y = -2
-------------------
9m - 8 = 6m + 7
9m - 6m = 7 + 8
3m = 15
m = 15 : 3
m = 5
--------------
56 - 9n = -5n
9n - 5n = 56
4n = 56
n = 56 : 4
n = 14
------------------
15 - 8x = 2 - 9x
9x - 8x = 2 - 15
x = -13
----------------------
-6m + 32 = 2m
2m + 6m = 32
8m = 32
m = 32 : 8
m = 4
---------------
10z + 7 = 9z + 5
10z - 9z = 5 - 7
z = -2
-------------------
10 - 9y = 70 - 6y
9y - 6y = 10 - 70
3y = -60
y = -60 : 3
y = -20
1)
[ x = 0
[ x - 2 = 0 => x = 2
[ x - 3 = 0 => x = 3
ответ : 0 , 2 , 3
2)
[
[
[
------------------------
[
[
[
[
ответ : -√5 , 1 , √5 , 3
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