Toán Lớp 4: Tìm y:: A . 53*y+ 106 = 43036.
B . 78*y-234=51246
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Toán Lớp 4: Tìm y:: A . 53*y+ 106 = 43036.
B . 78*y-234=51246
Comments ( 2 )
53 x y =43036 – 106 = 42930
y = 42930 : 53
y = 810
Vậy y = 810
B. 78 x y – 234 = 51246
78 x y = 51246 + 234
78 x y = 51480
y = 51480 : 78
y = 660
Vậy y = 660