Question

При каком значении x выражения 2x-3 и 3x+5 имеют противоположные значения?

Answer 1

Можно ли x поменять на противоположный во втором случае? 
2 * 2 - 3 = 1
3 * (-2) = -1

Answer 2

Finding Opposite Values of x in the Expressions 2x-3 and 3x+5

To find the values of x in the expressions 2x-3 and 3x+5 that have opposite values, we can set the two expressions equal to each other and solve for x. When the two expressions are equal, the values of x will be opposite to each other.

Setting up the equation: We have the expressions 2x-3 and 3x+5. To find the values of x for which these expressions have opposite values, we can set them equal to each other:

Equation: 2x - 3 = -(3x + 5)

Solving for x: Let's solve the equation to find the values of x for which the expressions have opposite values.

Citing relevant search snippets: - The equation 2x - 3 = -(3x + 5) can be found in a search snippet.

Solving the equation: ``` 2x - 3 = -(3x + 5) 2x - 3 = -3x - 5 2x + 3x = -5 + 3 5x = -2 x = -2/5 ```

Conclusion: The value of x for which the expressions 2x-3 and 3x+5 have opposite values is x = -2/5.