Răspuns :
a). x/9 = 4/3
x= 9×4:3
x=12
b). 8/x = 4/7
x= 8×7:4
x= 14
c). 7/5 = x/10
x = 7×10:5
x= 14
d). 8/5 =16/x
x=5×16:8
x= 10
Răspuns:
a 12
b 14
c 14
d 10
Explicație pas cu pas:
A 3x=4×9
X=4×3
B 4x=8×7
X=2×7
C 5x=10×7
X=2×7
D 8x=16×5
X=2×5
a). x/9 = 4/3
x= 9×4:3
x=12
b). 8/x = 4/7
x= 8×7:4
x= 14
c). 7/5 = x/10
x = 7×10:5
x= 14
d). 8/5 =16/x
x=5×16:8
x= 10
Răspuns:
a 12
b 14
c 14
d 10
Explicație pas cu pas:
A 3x=4×9
X=4×3
B 4x=8×7
X=2×7
C 5x=10×7
X=2×7
D 8x=16×5
X=2×5