Question

2 |5х+7| - 10,3 = -4, 3​

Answer 1

Ответ:

Пошаговое объяснение:

сначала мы умножаем 2 на скобку 2*5x+2*7=10x+14-10,3=-4,3 дальше

10х+14=5,7 после 10х=-8,3 а потом уже х=-8,3:10 вот и весь ответ х=-0,83

Answer 2

To solve the equation, we need to isolate the variable "x." Let's break it down step by step:

1. Combine like terms: 2 |5x + 7| - 10.3 = -4.3

2. Add 10.3 to both sides of the equation to move the constant term to the right side: 2 |5x + 7| = -4.3 + 10.3 2 |5x + 7| = 6

3. Divide both sides of the equation by 2 to isolate the absolute value term: |5x + 7| = 6 / 2 |5x + 7| = 3

Now, we need to consider two cases:

Case 1: 5x + 7 is positive (5x + 7 ≥ 0) In this case, the absolute value of (5x + 7) will be equal to (5x + 7) itself.

So, we have: 5x + 7 = 3

Now, solve for x: 5x = 3 - 7 5x = -4 x = -4 / 5 x = -0.8

Case 2: 5x + 7 is negative (5x + 7 < 0) In this case, the absolute value of (5x + 7) will be the negative of (5x + 7).

So, we have: -(5x + 7) = 3

Now, solve for x: -5x - 7 = 3 -5x = 3 + 7 -5x = 10 x = 10 / -5 x = -2

So, the solutions for the equation are x = -0.8 and x = -2.