№ 184
а) ( 106 + 68 ) - ( 23 + 59 ) = 174 - 82 = 92
б) ( c - 86 ) - 111 = c - 86 - 111 = c - ( 86 + 111 ) = c - 197
в) ( x - 23 ) - ( y - 45 ) = x - 23 - y + 45 = x - y + 45 - 23 = x - y + 22
г) ( 273 + t ) - ( 104 - n ) = 273 + t - 104 + n = 273 - 104 + t + n = 169 + t + n
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Answers & Comments
№ 184
а) ( 106 + 68 ) - ( 23 + 59 ) = 174 - 82 = 92
б) ( c - 86 ) - 111 = c - 86 - 111 = c - ( 86 + 111 ) = c - 197
в) ( x - 23 ) - ( y - 45 ) = x - 23 - y + 45 = x - y + 45 - 23 = x - y + 22
г) ( 273 + t ) - ( 104 - n ) = 273 + t - 104 + n = 273 - 104 + t + n = 169 + t + n