Помогите решить уровнения 1) 47+2(x+4)=7 2) 0,7x-1,82=0,8x+3,46. Created by david12316654. algebra-ru

1. 47 + 2x + 8 = 72x = -48x = -242. 0.7x - 0.8x = 3.46 + 1.82-0.1x = 5.28x = -52.8