=>43-x=36/49x6/7=216/343
hay x=14533/343
\(43-x=\dfrac{36}{49}\times\dfrac{6}{7}\)
\(43-x=\dfrac{216}{343}\)
\(x=43-\dfrac{216}{343}\)
\(x=\dfrac{14533}{343}\)
=>43-x=36/49x6/7=216/343
hay x=14533/343
\(43-x=\dfrac{36}{49}\times\dfrac{6}{7}\)
\(43-x=\dfrac{216}{343}\)
\(x=43-\dfrac{216}{343}\)
\(x=\dfrac{14533}{343}\)
2.Tính giá trị biểu thức
a) ( 42 - \(\dfrac{5}{6}\) x \(\dfrac{36}{5}\)) : \(\dfrac{1}{2}\) + \(\dfrac{7}{6}\) b) \(\dfrac{18}{5}\) - \(\dfrac{1}{7}\) x 2 + \(\dfrac{1}{3}\)
tìm x:
a) \(\dfrac{24}{35}\) - x = \(\dfrac{2}{7}\)
b) x - \(\dfrac{5}{6}\) = \(\dfrac{7}{8}\)
c) x - \(\dfrac{11}{5}\) = \(\dfrac{2}{5}\) : \(\dfrac{2}{3}\)
(giải chi tiết hộ mình)
Tính giá trị biểu thức :
\(\dfrac{9}{5}-\dfrac{3}{4}:\dfrac{5}{6}=?\)
Tìm x :
\(\dfrac{7}{9}:x=\dfrac{5}{7}\)
Tìm x
a, \(\dfrac{5}{8}\) \(-\) \(x\) \(=\) \(\dfrac{4}{7}\) x\(\dfrac{1}{4}\)
b, \(x:\) \(\dfrac{4}{5}\) \(=\) \(\dfrac{3}{4}\) \(+\) \(\dfrac{1}{6}\)
Tìm x :
a) \(\dfrac{2}{9}\) + x = 1 b)\(\dfrac{6}{7}\) - x = \(\dfrac{2}{3}\) c)x - \(\dfrac{1}{2}\)= \(\dfrac{1}{4}\)
bài 1 : tìm x
a) x + \(\dfrac{7}{8}\) = \(\dfrac{13}{2}\) : 4
b) x : \(\dfrac{5}{3}\) = \(\dfrac{6}{5}\) - \(\dfrac{2}{3}\)
bài 2 : giá trị của biểu thức \(\dfrac{28}{25}\) : \(\dfrac{7}{15}_{ }\) x 5 là ....
tìm số tự nhin x bt
a.\(x-\)\(\dfrac{5}{14}=\dfrac{3}{7}-\dfrac{1}{14}\) b.\(\dfrac{2}{9}:x=\dfrac{1}{2}+\dfrac{2}{3}\) c.\(\dfrac{6}{32:x}=\dfrac{12}{16}\)
Bài 1 : TÍNH
\(\dfrac{2}{3}+\dfrac{3}{10}\) ; \(\dfrac{2}{3}-\dfrac{5}{8}\) ; \(\dfrac{3}{7}\) x \(\dfrac{4}{9}\) ; \(\dfrac{5}{6}:\dfrac{4}{3}\)
BÀI 2 : TÌM \(x\)
a) \(\dfrac{5}{4}-x\) bằng \(\dfrac{2}{3}\) b) \(x:\dfrac{3}{5}b\text{ằng}4\)
giải giúp mik với. đi mà. làm ơn. GIẢI RÕ RÀNG VÀ Đ CHO MIK VỚI NHA. CẢM ƠN AH
Câu này nữa bạn: \(\dfrac{2}{7}\dfrac{x}{x}\dfrac{7}{9}\dfrac{x}{x}\dfrac{6}{6}\dfrac{x}{x}\dfrac{9}{5}=\)
Tính bằng cách thuận tiện nhất:
a) 60 x (\(\dfrac{7}{12}\) + \(\dfrac{4}{15}\))
b) \(\dfrac{1}{2}\) x \(\dfrac{2}{3}\) x \(\dfrac{3}{4}\) x \(\dfrac{4}{5}\) x \(\dfrac{5}{6}\) x \(\dfrac{6}{7}\) x \(\dfrac{7}{8}\) x \(\dfrac{8}{9}\)