-2*(x-5)+3*(x-4)=4x+1 срочно!!
Решите задачу:
-2*(x - 5) + 3*(x - 4) = 4x + 1 -2x + 10 + 3x - 12 = 4x + 1 x - 2 = 4x + 1 x - 4x = 1 + 2 - 3x = 3 x = 3 : (-3) х = - 1 проверим: - 2 * ( - 1 - 5) + 3 * ( - 1 - 4) = 4*(-1) + 1 - 2 * ( - 6) + 3 * (-5) = - 4 + 1 12 - 15 = - 3 - 3 = - 3