Naciyesimsek2006rans
Answered

x-y=2
y-z=1
x+z=7
olduğuna göre, y+z toplamı kaçtır? ​

Sagot :

Cevap:

CEVAP 5

Adım adım açıklama

x-y=2                                                              x+z=7

y-z=1       alt alta toplarsak    x-z=3 eder    x-z=3     alt alta toplarsak 2x=10

x=5    yerine koyarsak x-y=2 yani 5-y=2     y=3    y-z=1  yani   3-z=1     z=2     ozaman y+z 3+2=5  

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