Răspuns :

Daniel201793id

Explicație pas cu pas:

9×a=36

a=36:9

a=4

v:9×4=36

b×7=49

b=49:7

b=7

v:7×7=49

9xa=90

a=90:9

a=10

9×10=90

100xd=400

d=400:100

d=4

v:100×4=400

ex6=48

e=48:6

e=8

v:8×6=48

8xf=800

f=800:8

f=100

v:8×100=800

3×3×h=27

9×h=27

h=27:9

h=3

v:3×3×3=9×3=27

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