26x - (245 + 506) = 322726x - 751 = 322726x = 3227 + 75126x = 3978x = 3978 / 26x = 153
Ответ: x = 153.
26x - (245 + 506) = 3227
26x - 751 = 3227
26x = 3227 + 751
26x = 3978
x = 3978 / 26
x = 153
Ответ: x = 153.