Решите уравнение 5(x + 6) + 1 = 3 – 2 x.
5(x + 6) + 1 = 3 – 2 x 5x+30+1=3-2x 5x+31=3-2x 5x+2x=3-31 7x= -28 x= -28:7 x=-4