1) ( 198+Х ) : 2 = 560 2) 165 + Х х 45 = 300

Question

1) ( 198+Х ) : 2 = 560


2) 165 + Х х 45 = 300

Answer 1

(198+x) : 2 = 560
198 + x = 560 * 2
198 + x = 1120
x = 1120 - 198 
x = 922


165 + x * 46 = 300
165 + 46x = 300
46x = 300 - 165
46x = 135
x = 2 43/46 (две целых сорок три сорок шестых)