Решите уравнение

1) 4 (2-3x) + 7 (6x+1) - 9 (9x-4) = 30

2) 2m+5 (3 - (m+1)) = 5 (2-m) + 12

4 (2-3x) + 7 (6x+1) - 9 (9x-4) = 30

8-12x+42x+7-81x+36=30

-51x=30-8-36-7

-51x=-21: (-51)

x=21/51=7/17

2m+5 (3 - (m+1)) = 4 (2-m) + 12

2m+5 (3-m-1) = 8-4m+13

2m+15-5m-5=21-4m

-3m+4m=21-15+5

m=11