Toán Lớp 6: a)-27:x=3
b)x:25=-75
c)(x-3)-2=-14
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Toán Lớp 6: a)-27:x=3
b)x:25=-75
c)(x-3)-2=-14
Comments ( 2 )
$\text{a, (-27) : x = 3}$
$\text{ x = (-27) : 3}$
$\text{ x = -9}$
$\text{Vậy x = -9}$
$\text{b, x : 25 = -75}$
$\text{ x = (-75) × 25}$
$\text{ x = -1875}$
$\text{Vậy x = -1875}$
$\text{c, (x – 3) – 2 = -14}$
$\text{ x – 3 = (-14) + 2}$
$\text{ x – 3 = -12}$
$\text{x = (-12) + 3}$
$\text{x = -9}$
$\text{Vậy x = -9}$
a,
-27:x=3
->x=(-27):3
->x=-9
Vậy x=-9
b,
x:25=-75
->x=(-75).25
->x=-1875
Vậy x=-1875
c,
(x-3)-2=-14
->x-3=(-14)+2
->x-3=-12
->x=(-12)+3
->x=-9
Vậy x=-9