Các câu hỏi tương tự
Tìm x:
a) \(x-\left(\frac{50x}{160}+\frac{25x}{200}\right)=11\frac{1}{4}\)
b)\(\left(x-5\right)\cdot\frac{30}{100}=\frac{200x}{100}+5\)
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Tính giá trị của biểu thức:
Xem chi tiết
\(A=\frac{-5x}{21}+\frac{-5y}{21}+\frac{-5z}{21}\)
biết x + y = -z
2. Tìm x biết:
\(\left(x-5\right)\cdot\frac{30}{100}=\frac{200x}{100}+5\)\(60\%x+0,4x+\frac{x}{3}=2\)\(1\frac{2}{5}+\left(\frac{\frac{2}{7}+\frac{2}{17}+\frac{2}{37}}{\frac{5}{7}+\frac{5}{17}+\frac{5}{37}}\right)\cdot x=\frac{16}{5}\)
Tìm x, biết:a, x-left(frac{50x}{100}+frac{25x}{200}right)11frac{1}{4} b,left(x-5right).frac{30}{100}frac{200x}{100}+5c,frac{x+1}{2}frac{8}{x+1} d, x:left(9frac{1}{2}-frac{3}{2}right)frac{0,4+frac{2}{9}-frac{2}{11}}{1,6+frac{8}{9}-frac{8}{11}}
Đọc tiếp
Tìm x, biết:
a, \(x-\left(\frac{50x}{100}+\frac{25x}{200}\right)=11\frac{1}{4}\) b,\(\left(x-5\right).\frac{30}{100}=\frac{200x}{100}+5\)
c,\(\frac{x+1}{2}=\frac{8}{x+1}\) d, \(x:\left(9\frac{1}{2}-\frac{3}{2}\right)=\frac{0,4+\frac{2}{9}-\frac{2}{11}}{1,6+\frac{8}{9}-\frac{8}{11}}\)
Tìm x;y thuộc N:
a/ \(\frac{4}{x}\)- \(\frac{y}{3}\)= \(\frac{5}{6}\)
b/ ( x-5) . \(\frac{30}{100}\)= \(\frac{200x}{100}\)+ 5
Tìm x:
a) x - (\(\frac{50x}{100}+\frac{25x}{200}\)) = \(11\frac{1}{4}\)
b) (x - 5) . \(\frac{30}{100}\) = \(\frac{200x}{100}\) + 5
Tìm số tự nhiên x, biết: \(\left(x-5\right)\frac{30}{100}=\frac{20x}{100}+5\)
Tìm x,biết:
a) \(\frac{1}{2}.\left(2x+3\right)-\frac{1}{3}\left(5-3x\right)=\frac{3}{2}x+7\)
b) \(30.\left(2+x\right)-6.\left(x-5\right)-24.x=100\)
Tìm x, biết:
\(A.\frac{1}{2}.\left(2x+3\right)-\frac{1}{3}\left(5-3x\right)=\frac{3}{2}x+7\)
\(B.30.\left(2+x\right)-6.\left(x-5\right)-24.x=100\)
1, Tính \(\frac{1}{2}-\left(\frac{1}{3}+\frac{2}{3}\right)+\left(\frac{1}{4}+\frac{2}{4}+\frac{3}{4}\right)-\left(\frac{1}{5}+\frac{2}{5}+\frac{3}{5}+\frac{4}{5}\right)+...+\left(\frac{1}{100}+\frac{2}{100}+\frac{3}{100}+...+\frac{99}{100}\right)\)2,Tính \(\left(1-\frac{1}{2^2}\right)x\left(1-\frac{1}{3^2}\right)x\left(1-\frac{1}{4^2}\right)x...x\left(1-\frac{1}{n^2}\right)\)