Tìm x : ( 4,5 – 2x ) ( -1$\frac{4}{7}$ ) = $\frac{11}{14}$ 26/09/2021 Bởi Lyla Tìm x : ( 4,5 – 2x ) ( -1$\frac{4}{7}$ ) = $\frac{11}{14}$
=(4, 5 – 2x) (-11/7) =11/4 =(-99/14 – 22/17x) =11/4 =-99/14 -22/17x=11/4 =-99/14 – 11/4=22/17x =-275/28=22/7x x=-56/425 Bình luận
( 4,5 – 2x ) ( -1$\frac{4}{7}$ ) = $\frac{11}{14}$ ( 4,5 – 2x ) ( -$\frac{11}{7}$ ) = $\frac{11}{14}$ 4,5 – 2x = $\frac{11}{14}$ : ( -$\frac{11}{7}$ ) 4,5 – 2x = $\frac{11}{14}$ . $\frac{-7}{11}$ 4,5 – 2x = $\frac{-1}{2}$ $\frac{45}{10}$ – 2x = $\frac{-1}{2}$ $\frac{9}{2}$ – 2x = $\frac{-1}{2}$ 2x = $\frac{9}{2}$ – $\frac{-1}{2}$ 2x = $\frac{10}{2}$ 2x = 5 x = $\frac{5}{2}$ Vậy x = $\frac{5}{2}$ ${Chúc bạn học tốt $ #${hihihihihihi $ Bình luận
=(4, 5 – 2x) (-11/7) =11/4
=(-99/14 – 22/17x) =11/4
=-99/14 -22/17x=11/4
=-99/14 – 11/4=22/17x
=-275/28=22/7x
x=-56/425
( 4,5 – 2x ) ( -1$\frac{4}{7}$ ) = $\frac{11}{14}$
( 4,5 – 2x ) ( -$\frac{11}{7}$ ) = $\frac{11}{14}$
4,5 – 2x = $\frac{11}{14}$ : ( -$\frac{11}{7}$ )
4,5 – 2x = $\frac{11}{14}$ . $\frac{-7}{11}$
4,5 – 2x = $\frac{-1}{2}$
$\frac{45}{10}$ – 2x = $\frac{-1}{2}$
$\frac{9}{2}$ – 2x = $\frac{-1}{2}$
2x = $\frac{9}{2}$ – $\frac{-1}{2}$
2x = $\frac{10}{2}$
2x = 5
x = $\frac{5}{2}$
Vậy x = $\frac{5}{2}$
${Chúc bạn học tốt $
#${hihihihihihi $