Question

(a+3)x=-1. Найдите значение а

Answer 1

$(a+3)x=-1$
Решаем уравнение относительно а
$(a+3)x=-1 \\ a+3 = -\frac{1}{x} \\ a = - \frac{1}{x} - 3$

Answer 2

To solve for the value of "a" in the equation (a+3)x=-1, we can follow these steps:

1. Distribute the x-term on the left side of the equation: ax + 3x = -1

2. Combine like terms on the left side: (a+3)x = -1

3. Divide both sides by (a+3) to isolate x: x = -1 / (a+3)

4. Now we can substitute this expression for x back into the original equation: (a+3)x = -1 (a+3)(-1 / (a+3)) = -1

5. Simplify the left side by canceling out the (a+3) terms: -1 = -1

6. Since the equation is true for any value of a, there is no unique solution for a. Instead, we say that the equation is satisfied for any value of a except for a = -3, because division by zero is undefined.

Therefore, the value of "a" is any real number except for -3.