a) x × 5 = 50 – 15
x × 5 = 35
x = 35 : 5
x = 7
b) x : 4 = 38 – 33
x : 4 = 5
x = 5 × 4
x = 20
c) x + 356 = 414 + 62
x + 356 = 476
x = 476 – 356
x = 120
d) x : 4 = 2 × 3
x : 4 = 6
x = 6 × 4
x = 24
4+2+3+4+5+9+7+4+4+5+8+4+4+41+864+54+8456+414 x 45 :14 =?
Tìm x :
a) x − 4 = 2
x : 4 = 2
b) x − 5 = 4
x : 5 = 4
c) x − 3 = 3
x : 3 = 3
a)9÷X=3
b)X+25=77
c)67-X=38
d)5×X=35
e)66+X=41+58
g)28+X=30×2
h)54+X=50+50
i)108+X=800+109
x1+x2+x3+x4+...+x49+x50+x51=0
tìm x50
Tìm x :
a) x : 3 = 5
b) x : 4 = 2
c) x : 5 = 4
Tìm x, biết:
a) x × 5 = 35 – 5
b) x : 4 = 12 – 8
c) 4 × x = 6 × 2
d) x : 3 = 16 : 4
Tìm x:
X: 4 = 3
X: 3 = 2
X: 5 = 3
Tìm x:
X × 3 = 30
2 × x = 10
X : 4 = 5
1 x 2 = ?
1 x 2 x 3 = ?
1 x 2 x 3 x 4 = ?
1 x 2 x 3 x 4 x 5 = ?
1 x 2 x 3 x 4 x 5 x 6 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 = ?
