x=33
x/x+6=11/13: 13-11=2 x+6-x=6
6/2=3
11/13*3=33/39
vay x=33
\(\frac{x}{x+6}=\frac{11}{13}\)
=>13x=11(x+6)
=>13x=11x+66
=>13x-11x=66
=>2x=66
=>x=33
Vậy x=33
Tìm x, biết: \(\frac{x+2}{17}+\frac{x+4}{15}+\frac{x+6}{13}=\frac{x+8}{11}+\frac{x+10}{9}+\frac{x+12}{7}\)
tìm biết :
\(\frac{x+2}{17}+\frac{x+14}{15}+\frac{x+6}{13}=\frac{x+8}{11}+\frac{x+10}{9}\frac{x+12}{7}\)
Tìm x biết :\(\frac{11}{8}+\frac{13}{6}=\frac{85}{x}\)
Kết quả là x =
Tìm x biết:
a)\(\frac{x+1}{10}+\frac{x+1}{11}+\frac{x+1}{12}=\frac{x+1}{13}+\frac{x+1}{14}\)
b)\(\frac{x+1}{14}+\frac{x+2}{13}=\frac{x+3}{12}+\frac{x+4}{11}\)
Tìm x biết , \(\frac{-11}{8}\)- \(\frac{-13}{6}\)= \(\frac{5}{x}\)
Tìm x biết
\(\frac{x+2}{17}+\frac{x+4}{15}+\frac{x+6}{13}\)\(=\frac{x+8}{11}+\frac{x+10}{9}+\frac{x+12}{7}\)
Ai giúp tớ vs, tớ sẽ tk nhanh cho, làm ơn!!!!
Tìm x biết \(\frac{x+2}{17}+\frac{x+4}{15}+\frac{x+6}{13}\)\(=\frac{x+8}{11}+\frac{x+10}{9}+\frac{x+12}{7}\)
Giải chi tiết cho tớ nha, tớ tk liền luôn nha!!
Bài 2 : Tìm x, biết :
\(a.\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(b.\left(\frac{7}{12}+x\right)-\frac{11}{12}=\frac{2}{3}\)
Tìm x biết \(\frac{x+1}{10}+\frac{x+1}{11}+\frac{x+1}{12}=\frac{x +1}{13}+\frac{x+1}{14}\)
