b: \(x+1657-34524=1289\)
\(\Leftrightarrow x+1657=35813\)
hay \(x=34156\)
c) x - 54 683 = 32 596
x = 32 956 + 54 863
x = 87 819
a) x + 27 569 = 35 986
x = 35986 - 27569
x = 8417
b) x + 1657 - 34524 = 1289
x + 1657 = 1289 + 34524
x + 1657 = 35813
x = 35813 - 1657
x = 34156