Question

x=2
y=5
195+x+7=y+z
найти z

Answer 1

х = 2; у = 5

195 + х + 7 = у + z

195 + 2 + 7 = 5 + z

204 = 5 + z

z = 204 - 5

z = 199

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Проверка:

195 + 2 + 7 = 5 + 199

204 = 204