Odpowiedź :
Odpowiedź:
a)
8 + x = 11
x = 11 - 8
x = 3
b)
6 + x = 8 - x
x + x = 8 - 6
2x = 2
x = 1
c)
10x = 20 /:10
x = 2
d)
x + 19 = 26
x = 26 - 19
x = 7
e)
50 = 22 + x
50 - 22 = x
x = 28
A) 8 + x = 11
x = 11 - 8
x = 3
B) 6 + x = 8 - x
x + x = 8 - 6
2x = 2 / : 2
x = 1
C) 10x = 20 / : 10
x = 2
D) x + 19 = 26
x = 26 - 19
x = 7
E) 50 = 22 + x
50 - 22 = x
x = 28