giúp mình với !!! -x=2x+4 3-x=4 -2=x+1 x-6=2x 12/07/2021 Bởi Ariana giúp mình với !!! -x=2x+4 3-x=4 -2=x+1 x-6=2x
– x = 2x + 4 <=>- x – 2x = 4 <=>-3x = 4 <=>x = $\frac{-4}{3}$ 3 – x = 4 <=> x = r – 3 <=> x = 1 – 2 = x + 1 <=> x = -2 – 1 <=> x = – 3 x – 6 = 2x <=> x – 2x = 6 <=> – x = 6 <=> x = – 6 Bình luận
Lời giải: $•-x=2x+4<=>-3x=4<=>x=\frac{-4}{3}$ $•3-x=4<=>-x=1<=>x=-1$ $•-2=x+1<=>x=-2-1<=>x=-3$ $•x-6=2x<=>-x=6<=>x=-6$ Bình luận
– x = 2x + 4
<=>- x – 2x = 4
<=>-3x = 4
<=>x = $\frac{-4}{3}$
3 – x = 4
<=> x = r – 3
<=> x = 1
– 2 = x + 1
<=> x = -2 – 1
<=> x = – 3
x – 6 = 2x
<=> x – 2x = 6
<=> – x = 6
<=> x = – 6
Lời giải:
$•-x=2x+4<=>-3x=4<=>x=\frac{-4}{3}$
$•3-x=4<=>-x=1<=>x=-1$
$•-2=x+1<=>x=-2-1<=>x=-3$
$•x-6=2x<=>-x=6<=>x=-6$