Tìm x : a, 29,12: x = 12,7 - 7,5 b, x : 6,14 = 21,2 - 13,7
Giải thích
a,
29,12:x=12,7−7,529,12:x=5,2x=29,12:5,2x=5,6
b,
x:6,14=21,2−13,7x:6,14=7,5x=7,5×6,14x=46,05
a,
29,12:x=12,7−7,529,12:x=5,2x=29,12:5,2x=5,6
b,
x:6,14=21,2−13,7x:6,14=7,5x=7,5×6,14x=46,05