X+(x-5)=15 решите приз

Question

X+(x-5)=15 решите приз

Answer 1

Х + (х - 5) = 15
х + х - 5 = 15
2х = 15 + 5
2х = 20
х = 20 : 2
х = 10
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10 + (10 - 5) = 15
10 + 5 = 15
15 = 15

Comments

спс