Question

-0,25*|x|-7=-12нужна помощь​

Answer 1

Ответ:

х=20

Пошаговое объяснение:

х=(-12+7)/-0,25

х=-5/-0,25=5/0,25

х1=20; x2=-20

Answer 2

-0,25|х|=-5
|х|=20
Модуль раскрывается на два знака, значит корнями уравнения являются : 20 и -20

Answer 3

To solve the equation -0.25*|x| - 7 = -12, we can follow these steps:

1. Move the constant term to the other side of the equation: -0.25*|x| = -12 + 7

2. Simplify the right side of the equation: -0.25*|x| = -5

3. Remove the absolute value by considering two cases: a) When x is positive: -0.25*x = -5

b) When x is negative: -0.25*(-x) = -5

4. Solve each case separately: a) When x is positive: -0.25*x = -5 Multiply both sides by -4 to eliminate the coefficient: x = (-5) * (-4) x = 20

b) When x is negative: -0.25*(-x) = -5 Multiply both sides by -4 to eliminate the coefficient: -x = (-5) * (-4) -x = 20 Multiply both sides by -1 to solve for x: x = -20

Therefore, the equation -0.25*|x| - 7 = -12 has two solutions: x = 20 and x = -20.

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