\(a,x-\dfrac{1}{5}=\dfrac{2}{11}\\ x=\dfrac{2}{11}+\dfrac{1}{5}=\dfrac{10}{55}+\dfrac{11}{55}=\dfrac{21}{55}\)
\(b,x=-\dfrac{2}{4}+\dfrac{3}{4}=\dfrac{1}{4}\)
\(c,x=\dfrac{13}{12}-\dfrac{7}{8}=\dfrac{26}{24}-\dfrac{21}{24}=\dfrac{5}{24}\)
\(d,x=\dfrac{4}{27}+\dfrac{-6}{15}=\dfrac{20}{135}+-\dfrac{54}{135}=-\dfrac{34}{135}\)
\(e,x=\dfrac{9}{48}+\dfrac{-6}{12}=\dfrac{9}{48}+\dfrac{-24}{48}=-\dfrac{15}{48}\)
\(g,x=\dfrac{3}{5}-\dfrac{2}{7}=\dfrac{21}{35}-\dfrac{10}{35}=\dfrac{11}{35}\)
a) \(x-\dfrac{1}{5}=\dfrac{2}{11}\)
\(x=\dfrac{2}{11}+\dfrac{1}{5}\)
\(x=\dfrac{21}{55}\)
vậy x = ....
b) \(x=\dfrac{-1}{2}+\dfrac{3}{4}\)
\(x=\dfrac{1}{4}\)
vậy x =....
c) \(x+\dfrac{7}{8}=\dfrac{13}{12}\)
\(x=\dfrac{13}{12}-\dfrac{7}{8}\)
\(x=\dfrac{5}{24}\)
vậy x = ....
d) \(x-\dfrac{-6}{15}=\dfrac{4}{27}\)
\(x=\dfrac{4}{27}+\dfrac{-6}{15}\)
\(x=\dfrac{-34}{135}\)
vậy x =....
e) \(-\dfrac{-6}{12}+x=\dfrac{9}{48}\)
\(x=\dfrac{6}{12}+\dfrac{9}{48}\)
\(x=\dfrac{11}{16}\)
vậy x = ....
nếu sai mog bạn thông cảm ^^
cần giúp gấp vs ạ, em cảm ơn nhìu
