Răspuns :
Răspuns:
a) x + 17 = 56
x = 56 - 17
x = 39
c) x + 123 = 250
x = 250 - 123
x = 127
d) 2020 - x = 2943
x = 2943 - 2020
x = 943
f) x - 127 = 559
x = 559 - 127
x = 432
g) x - 23 = 126
x = 126 + 23
x = 149
j) 59 - x = 23
x = 59 - 23
x = 36
l) 2020 - x = 246
x = 2020 - 246
x = 1774