ĐỀ: TÌM X
\(a,\frac{7}{5}:x+\frac{3}{2}=\frac{16}{3}\)
\(b,x:\frac{1}{5}+\frac{1}{7}=\frac{3}{5}.\frac{18}{21}\)
\(c,x-1\frac{1}{3}:2=\frac{5}{7}\)
\(d,x+2\frac{3}{5}.\frac{1}{6}=\frac{35}{36}\)
\(e,\left(x+\frac{3}{2}\right):2=\frac{7}{10}+\frac{1}{5}\)
ai trả lời được mik tik cho
Tìm x biết: \(\left(x+\frac{1}{2}\right)+\left(x+\frac{1}{4}\right)+\left(x+\frac{1}{8}\right)+\left(x+\frac{1}{16}\right)=1\)
Tìm x biết: \(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+...+\frac{1}{\left(x-1\right)\times x}=\frac{15}{16}\)
tìm x , biết
\(\frac{25-x}{18}=\frac{1}{2}\)
Tìm x,biết
( x + \(\frac{1}{2}\)) + ( x + \(\frac{1}{4}\)) + ( x + \(\frac{1}{8}\)) +( x + \(\frac{1}{16}\)) = 1
Tìm x biết:
\(1-\left(5\frac{4}{9}+x-7\frac{7}{18}\right)\div15\frac{3}{4}=0\)
Bài 2 : Tìm x , biết :
a , \(\frac{1}{2}xX-\frac{2}{3}+0,75=1,25X\frac{2}{3}\) b , 1 - \(\left(5\frac{3}{8}+x-7\frac{5}{24}\right):16\frac{2}{3}=0\) c , (X+1) + (X+2) + (X+3) + (X+4) + ..... + (X+28) = 555
d, (X+4) + (x+6) + (X+8) + ... + (X+26) = 210
tìm x biết: \(\frac{\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\right)}{x}=\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+...+\frac{1}{132}\)
tìm x, biết: \(\frac{x-1}{5}+\frac{x-1}{7}+\frac{x-1}{9}+....+\frac{x-1}{35}+\frac{x-1}{37}=0\)