Решите уравнение 84: (x-3) = 42

3 (x+40=33

45: (x-50=14

4 (x-7) = 12

6 (x-2) = 24

84: (x-3) = 42

х-3=84:42

х-3=2

х=2+3

х=5

3 (x+40) = 33

х+40=33:3

х+40=11

х=11-40

х=-29

45: (x-50) = 14

х-50=45/14 = 3 3/14

х=3 3/14 + 50

х=53 3/14

4 (x-7) = 12

х-7=12:4

х-7=3

х=3+7

х=10

6 (x-2) = 24

х-2=24:6

х-2=4

х=4+2

х=6