Решите уравнение 1,3×-2-(3,3×+5)=2×+1
1,3x - 2 - ( 3,3x + 5) = 2x + 1 1,3x - 2 - 3,3x - 5 = 2x + 1 - 2x - 7 = 2x + 1 - 2x - 2x = 7 +1 - 4x = 8 4x = - 8 x = - 2