Qui peux m’aider svp demain ❤️

1. 3*(2a+4)-2 = 6a+12-2 = 6a+10

2. 16+3*(4b-1) = 16+12b-3 = 12b+13

3. 13+2c-4+5*(6-2c) = 9+2c+30-10c = -8c+39