Решите пожалуйста 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 помогите пожалуйста
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