\(\dfrac{2\times x-4,36}{0,125}=0,25\times42,9-11,7\times0,25+0,25\times0,8\)
\(\dfrac{2\times x-4,36}{0,125}=0,25\times\left(42,9-11,7+0,8\right)\)
\(\dfrac{2\times x-4,36}{0,125}=0,25\times32=8\)
\(2\times x-4,36=8\times0,125=1\)
\(2\times x=1+4,36=5,36\)
\(x=5,36\div2\)
\(x=2,68\)
a) Tìm x, biết .\(\frac{2xX-4,36}{0,125}=0,25x42,9-11,7x0,25+0,25x0,8\)
Câu hỏi:
\(\frac{2.x-4,36}{0,125}=0,25.42,9-11,7.0,25+0,25.0,8\)
1, A= \(\dfrac{-3}{4}.\left(0,125-1\dfrac{1}{2}\right):\dfrac{33}{16}-25\%\)
2, B= \(1\dfrac{13}{15}.0,75-\left(\dfrac{11}{20}+25\%\right):\dfrac{7}{3}\)
3, C= \(\dfrac{5}{16}:0,125-\left(2\dfrac{1}{4}-0,6\right).\dfrac{10}{11}\)
4, D= \(6\dfrac{5}{12}:2\dfrac{5}{4}+11\dfrac{1}{4}.\left(\dfrac{1}{3}-\dfrac{1}{5}\right)\)
\(\dfrac{4}{7}x=\dfrac{9}{8}-0,125\)
tìm x
c) (0,125 + 40% − \(\dfrac{3}{40}\)) : [ 11\(\dfrac{3}{7}\) + 8\(\dfrac{1}{2}\) − ( \(\dfrac{13}{12}\) − 5\(\dfrac{4}{7}\))]
\(2\dfrac{1}{6}+\dfrac{5}{6}\div3-0,125\times\left(-2\right)^2\)
2\(\dfrac{1}{6}\)\(+\dfrac{5}{6}:3-0,125\times\left(-2\right)^2\)
D=\(2\dfrac{1}{3}-30\%+0,125-6,5\)
Tìm x, biết:
a) \(\left(3\dfrac{1}{2}-2.x\right).3\dfrac{1}{3}=7\dfrac{1}{3}\)
b) \(\dfrac{4}{9}.x=\dfrac{9}{8}-0,125\)
c) \(\dfrac{-X}{21}=\dfrac{20}{7}\)
