Question

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4
Fis de lucru
V. Determină nr. de forma szu, stünd ca:
a) s +z+u=20
s+z. =15
z+u=12
b) s+z+u=23 s+z=17. z-u=3​

Answer 1

A)u=20-(s+z)=20-15=5

z+u=12 z=12-u z=12-5 z=7

s+z=15 s=15-z s=15-7 s=8

B)u=23-(s+z)=23-17=6

z-u=3 z=3+4 z=7

s+z=17 s=17-z s=17-9 s=8