295. Сравни уравнения каждой пары и их решения. x + 75 = 125 · 3 x - 75 = 125 · 3 x · 10 = 250 x : 10 = 250 x: 7 = 140 140: x = 7 32: x = 32 32 · x = 32

x + 75 = 125 ⋅ 3

x + 75 = 375

x = 375 - 75

x = 300

x - 75 = 125 ⋅ 3

x - 75 = 375

x = 375 + 75

x = 450

x ⋅ 10 = 250

x = 250 : 10

x = 25

x : 10 = 250

x = 250 ⋅ 10

x = 2500

x : 7 = 140

x = 140 ⋅ 7

x = 980

140 : x = 7

x = 140 : 7

x = 20

32 : x = 32

x = 32 : 32

x = 1

32 ⋅ x = 32

x = 32 : 32

x = 1

Ответ: x = 300; x = 450; x = 25; x = 2500; x = 980; x = 20; x = 1; x = 1.