Решите уровнение, 1)x+42=78 ,2)x-26=56,3)x-35=45,4)24+x=56 ,5)14+x=48, 6)38-x=17, 7)65-x=43 .вот несколько уравнений

1)x=78-42

x=36

2)x=56+26

x=82

3)x=45+35

x=80

4)x=56-24

x=32

5)x=48-14

x=34

6)-x=17-38

-x=-21

x=21

7)-x=43-65

-x=-22

x=22

1)
x + 42 = 78
x = 78 - 42
x = 36
36 + 42 = 78
78 = 78
2)
x - 26 = 56
x = 56 + 26
x = 82
82 - 26 = 56
56 = 56
3)
x - 35 = 45
x = 45 + 35
x = 80
80 - 35 = 45
45 = 45
4)
24 + x = 56
x = 56 - 24
x = 32
24 + 32 = 56
56 = 56
5)
14 + x = 48
x = 48 - 14
x = 34
14 + 34 = 48
48 = 48
6)
38 - x = 17
x = 38 - 17
x = 21
38 - 21 = 17
17 = 17
7)
65 - x = 43
x = 65 - 43
x = 22
65 - 22 = 43
43 = 43