Решение уравнение: 1)6m+m-35=21 2)17n+14n-145=134 3)5n+9n+32=200

1.1. 6m + m - 35 = 21 = 7m - 35 = 21

7m = 35 + 21

7m = 56

2. m  = 56 / 7 = 8

2.1. =21n(как в

21n = 145 + 134 = 279

2. n = 279 / 21 = 279/21

3.1. 14n + 32 = 200

2.14n = 200 - 32 = 168

3.n = 168 / 14 = 12