Question

x v= -1/2+3/4

x/15 = 3/5+-2/3

11/8+13/6=85/x

Answer 1

xem lại câu 1

\(\dfrac{x}{15}=\dfrac{3}{5}+\dfrac{-2}{3}\)

\(\dfrac{x}{15}=-\dfrac{1}{15}\)

\(x=\dfrac{\left(-1\cdot15\right)}{15}\)

\(x=-\dfrac{15}{15}\)

\(x=-1\)

 

\(\dfrac{11}{8}+\dfrac{13}{6}=\dfrac{85}{x}\)

\(\dfrac{85}{24}=\dfrac{85}{x}\)

\(x=\dfrac{\left(85\cdot24\right)}{85}\)

\(x=\dfrac{2040}{85}\)

\(x=24\)

Answer 2

câu 1 bỏ chữ v đi cha mình cảm ơn ạ ^-^