/x+6/=0
<=> x+6=0
<=> x=0-6
<=>x=-6
Vậy x=-6
-6 ./x/=-24
<=> lxl=(-24):(-6)
<=>lxl=4
<=>x=4 hoặc x=-4
Vậy x thuộc { 4;-4}
\(|x+6|=0\)
\(\Leftrightarrow x+6=0\)
\(\Leftrightarrow x=-6\)
\(-6\cdot|x|=-24\)
\(\Leftrightarrow|x|=4\Leftrightarrow\orbr{\begin{cases}x=4\\x=-4\end{cases}}\)
/x+6/=0
-6./x/=-24
Tìm x \(\varepsilon\)IN biết
a) 390 - (x-8) = 168:13
b) (x-140) : 7 = 27 - 24
c) x- 6 :2 - ( 48 - 24 ) :2 :6 - 3 = 0
d) x+5.2-(32+16.3:6-15)=0
X + 5 . 2 - ( 32 + 16 . 3 : 6 - 15 ) = 0
X - 6 : 2 - ( 48 - 24 ) : 2 :6 - 3 = 0
Tìm x, biết:
a, 390 – (x – 7) = 169:13
b, (x – 140) : 7 = 3 3 - 2 3 . 3
c, x – 6 : 2 – (48 – 24) : 2 :6 – 3 = 0
d, x + 5.2 – (32+16.3:6 – 15) = 0
Tìm x, biết:
a) 390 - ( x - 7 ) = 169 : 13
b) x - 6 : 2 - ( 48 - 24 ) : 2 : 6 - 3 = 0
c) ( x - 140 ) : 7 = 3 3 - 2 3 . 3
d) x + 5 . 2 - ( 32 + 16 . 3 : 6 - 15 ) = 0
Tìm x
( x - 140) : 7 = 3^3 - 2^3 × 3
X - 6 :2 -( 48 -24 ) :2 :6 -3 = 0
X + 5×2 -( 32 + 16 ×3 :6 -15 ) =0
x-6:2-(48-24):2:6-3=0
X—6:2—(48—24):2:6—3=0
x-6:2(48-24):2:6-3=0
