Решите плиз № 5,6 срочно надо,
5. а) 3(x+4) = 5 3x + 12 = 5 3x = -7 x = -7/3 б) 5(x-2) = -20(x+1) 5x - 10 = -20x - 20 25x = -10 x = -2/5 6. а) x + 5 = 30 x = 25 b) x+12 = -3x 4x = -12 x = -3 c) 2(x-1) + 5 - x = 3 2x - 2 + 5 - x = 3 x + 3 = 3 x = 0