a: \(x\cdot\dfrac{3}{4}+x=\dfrac{7}{8}\)
\(\Leftrightarrow x\cdot\dfrac{7}{4}=\dfrac{7}{8}\)
\(\Leftrightarrow x=\dfrac{1}{2}\)
Đúng 0
Bình luận (0)
Các câu hỏi tương tự
xin lỗi mình đăng muộn bn nào đag on giải giúp mik với mai mik ik học cô kỉm tra.
Tìm \(x\) là số tự nhiên biết:
a)\(\dfrac{2}{3}+\dfrac{3}{4}< x< 1\dfrac{1}{3}+\dfrac{4}{5}\) b)\(\dfrac{5}{6}-\dfrac{1}{4}< x< 2\dfrac{1}{3}-\dfrac{2}{5}\)
mik cần gấp.
Bài 3: (Đề 2) Tìm y
a) \(2\dfrac{2}{5}:\) y x \(1\dfrac{3}{4}=\dfrac{7}{8}\) b)\(3\dfrac{2}{5}:y:1\dfrac{1}{4}=2\dfrac{3}{5}\) c) \(\dfrac{12}{5}-2\dfrac{2}{5}x\) y \(=1\dfrac{1}{4}\)
a)dfrac{7}{8}xdfrac{3}{13}+dfrac{4}{9}xdfrac{4}{13}b)dfrac{6}{5}+dfrac{7}{3}+dfrac{8}{9}c)23: dfrac{5}{14}+dfrac{6}{7}+dfrac{4}{9}d)4dfrac{1}{4}+7dfrac{3}{7}-2dfrac{4}{17}e)8-(9dfrac{2}{11}+dfrac{8}{33})
Đọc tiếp
a)\(\dfrac{7}{8}\)x\(\dfrac{3}{13}\)+\(\dfrac{4}{9}\)x\(\dfrac{4}{13}\)
b)\(\dfrac{6}{5}\)+\(\dfrac{7}{3}\)+\(\dfrac{8}{9}\)
c)23: \(\dfrac{5}{14}\)+\(\dfrac{6}{7}\)+\(\dfrac{4}{9}\)
d)\(4\dfrac{1}{4}\)+\(7\dfrac{3}{7}\)-\(2\dfrac{4}{17}\)
e)8-(9\(\dfrac{2}{11}\)+\(\dfrac{8}{33}\))
dfrac{1}{3}+dfrac{2}{3}dfrac{4}{5}+dfrac{5}{6}dfrac{4}{5}-dfrac{3}{5}dfrac{9}{8}-dfrac{4}{2}dfrac{8}{5}xdfrac{5}{8}dfrac{6}{7}xdfrac{4}{7}dfrac{4}{5}:dfrac{4}{5}dfrac{5}{5}:dfrac{5}{5}a,
Đọc tiếp
\(\dfrac{1}{3}+\dfrac{2}{3}=\)
\(\dfrac{4}{5}+\dfrac{5}{6}=\)
\(\dfrac{4}{5}-\dfrac{3}{5}=\)
\(\dfrac{9}{8}-\dfrac{4}{2}=\)
\(\dfrac{8}{5}x\dfrac{5}{8}=\)
\(\dfrac{6}{7}x\dfrac{4}{7}=\)
\(\dfrac{4}{5}:\dfrac{4}{5}=\)
\(\dfrac{5}{5}:\dfrac{5}{5}=\)
a,
Bài 1: tính
a) 3dfrac{1}{2} + 4dfrac{5}{7} - 5dfrac{5}{14} b) 4dfrac{1}{2} + dfrac{1}{2} : 5dfrac{1}{2}
bài 2: tìm X
a) X x 3dfrac{1}{3} 3dfrac{1}{3} : 4dfrac{1}{4} b) 5dfrac{2}{3} : X 3dfrac{2}{3} - 2dfrac{1}{2}
các giáo viên olm giúp e vs, e cần gấp lắm!
Đọc tiếp
Bài 1: tính
a) 3\(\dfrac{1}{2}\) + 4\(\dfrac{5}{7}\) - 5\(\dfrac{5}{14}\) b) 4\(\dfrac{1}{2}\) + \(\dfrac{1}{2}\) : \(5\dfrac{1}{2}\)
bài 2: tìm X
a) X x \(3\dfrac{1}{3}\) = \(3\dfrac{1}{3}\) : \(4\dfrac{1}{4}\) b) \(5\dfrac{2}{3}\) : X = \(3\dfrac{2}{3}\) - \(2\dfrac{1}{2}\)
các giáo viên olm giúp e vs, e cần gấp lắm!
Bài 2 Tìm x
a) 4\(\dfrac{2}{3}:x-\dfrac{3}{5}=\dfrac{4}{3}\)
b) \(\dfrac{4}{3}+2\dfrac{1}{2}\)x \(X=2\)
c) \(X:3\dfrac{1}{3}=2\dfrac{2}{5}+\dfrac{7}{10}\)
a \(\dfrac{3}{4}+\dfrac{5}{6}\)=
b\(\dfrac{1}{2}+\dfrac{7}{12}\)=
c\(\dfrac{2}{3}\)x\(\dfrac{3}{4}\)=
d\(\dfrac{7}{4}:2\)=
ghi chi tiết giúp mình với ạ.Cảm ơn mọi người!
1.Tính a,5text{x}dfrac{7}{3} b,dfrac{13}{4}:72.Tính a,dfrac{3}{7}+dfrac{2}{5}+dfrac{3}{4} b,dfrac{9}{7}-dfrac{5}{11}text{x}dfrac{11}{7} c,dfrac{3}{5}text{x}dfrac{5}{7}text{+}dfrac{4}{7} d,dfrac{7}{9}text{x}dfrac{2}{5}:dfrac{3}{11} e,dfrac{9}{7}+dfrac{2}{3}-dfrac{1}{4} g,dfrac{4}{9}:dfrac{3}{5}text{x}dfrac{2}{11} h,dfrac{7}{2}-dfrac{3}{10}:dfrac{2}{5}
Đọc tiếp
1.Tính
\(a,5\text{x}\dfrac{7}{3}\) \(b,\dfrac{13}{4}:7\)
2.Tính
\(a,\dfrac{3}{7}+\dfrac{2}{5}+\dfrac{3}{4}\) \(b,\dfrac{9}{7}-\dfrac{5}{11}\text{x}\dfrac{11}{7}\) \(c,\dfrac{3}{5}\text{x}\dfrac{5}{7}\text{+}\dfrac{4}{7}\) \(d,\dfrac{7}{9}\text{x}\dfrac{2}{5}:\dfrac{3}{11}\) e,\(\dfrac{9}{7}+\dfrac{2}{3}-\dfrac{1}{4}\)
g,\(\dfrac{4}{9}:\dfrac{3}{5}\text{x}\dfrac{2}{11}\) h,\(\dfrac{7}{2}-\dfrac{3}{10}:\dfrac{2}{5}\)
Tìm x:
\(\dfrac{3}{5}\) : x = \(\dfrac{1}{3}+\dfrac{1}{2}\) x : \(\dfrac{7}{12}\) = 2 x - \(\dfrac{3}{2}\) = \(\dfrac{11}{4}-\dfrac{5}{4}\) x + \(\dfrac{5}{4}\) = \(\dfrac{3}{2}+\dfrac{7}{12}\)