3/4 : x= -7/12 3/4*x+1/5=1/6 3/8-1/6*x=1/4 1/3+1/2/x=-4 29/10/2021 Bởi Melanie 3/4 : x= -7/12 3/4*x+1/5=1/6 3/8-1/6*x=1/4 1/3+1/2/x=-4
Đáp án: Giải thích các bước giải: 3/4:x=-7/12 x=3/4:(-7/12) x=-9/7 Vậy x=-9/7 3/4.x+1/5=1/6 3/4.x=1/6-1/5 3/4.x=-1/30 x=-1/30:3/4 x=-2/45 Vậy x=-2/45 3/8-1/6.x=1/4 1/6.x=3/8-1/4 1/6.x=1/8 x=1/8:1/6 x=3/4 Vậy x=3/4 1/3+1/2:x=-4 1/2:x=-4-1/3 1/2:x=-13/3 x=1/2:(-13/3) x=-3/26 Vậy x=-3/26 Ý kiến riêng ạ! Bình luận
a) $\frac{3}{4}$:${x}$=$\frac{-7}{12}$ x =$\frac{3}{4}$:$\frac{-7}{12}$ x =$\frac{-9}{7}$ b) $\frac{3}{4}$.${x}$+$\frac{1}{5}$=$\frac{1}{6}$ $\frac{3}{4}$.${x}$ =$\frac{1}{6}$ -$\frac{1}{5}$ $\frac{3}{4}$.${x}$ =$\frac{-1}{30}$ x =$\frac{-4}{90}$ c) $\frac{3}{8}$-$\frac{1}{6}$.${x}$=$\frac{1}{4}$ $\frac{1}{6}$.${x}$ = $\frac{3}{8}$-$\frac{1}{4}$ $\frac{1}{6}$.${x}$ =$\frac{1}{8}$ x =$\frac{3}{4}$ d) $\frac{1}{3}$+$\frac{\frac{1}{2}}{x}$=-4 $\frac{\frac{1}{2}}{x}$ =-4-$\frac{1}{3}$ $\frac{\frac{1}{2}}{x}$ =$\frac{-13}{3}$ x =$\frac{1}{2}$:$\frac{-13}{3}$ x =$\frac{-3}{26}$ Bình luận
Đáp án:
Giải thích các bước giải:
3/4:x=-7/12
x=3/4:(-7/12)
x=-9/7
Vậy x=-9/7
3/4.x+1/5=1/6
3/4.x=1/6-1/5
3/4.x=-1/30
x=-1/30:3/4
x=-2/45
Vậy x=-2/45
3/8-1/6.x=1/4
1/6.x=3/8-1/4
1/6.x=1/8
x=1/8:1/6
x=3/4
Vậy x=3/4
1/3+1/2:x=-4
1/2:x=-4-1/3
1/2:x=-13/3
x=1/2:(-13/3)
x=-3/26
Vậy x=-3/26
Ý kiến riêng ạ!
a) $\frac{3}{4}$:${x}$=$\frac{-7}{12}$
x =$\frac{3}{4}$:$\frac{-7}{12}$
x =$\frac{-9}{7}$
b) $\frac{3}{4}$.${x}$+$\frac{1}{5}$=$\frac{1}{6}$
$\frac{3}{4}$.${x}$ =$\frac{1}{6}$ -$\frac{1}{5}$
$\frac{3}{4}$.${x}$ =$\frac{-1}{30}$
x =$\frac{-4}{90}$
c) $\frac{3}{8}$-$\frac{1}{6}$.${x}$=$\frac{1}{4}$
$\frac{1}{6}$.${x}$ = $\frac{3}{8}$-$\frac{1}{4}$
$\frac{1}{6}$.${x}$ =$\frac{1}{8}$
x =$\frac{3}{4}$
d) $\frac{1}{3}$+$\frac{\frac{1}{2}}{x}$=-4
$\frac{\frac{1}{2}}{x}$ =-4-$\frac{1}{3}$
$\frac{\frac{1}{2}}{x}$ =$\frac{-13}{3}$
x =$\frac{1}{2}$:$\frac{-13}{3}$
x =$\frac{-3}{26}$