Question

Помогите, запуталась. вот уравнение x-2y=4то получается, 2у=х-4, так?, а у=0,5х-2если мы за х возьмем 0, то у получится -2 или +2??????помогите, срочно!!!!!!!!!!!

Answer 1

X-2у=4
x-2у-4=0 ответ, то у =

Answer 2

Solving the Equation x - 2y = 4

To solve the equation x - 2y = 4, we can rearrange it to isolate y. Let's go through the steps:

1. Start with the equation: x - 2y = 4. 2. Subtract x from both sides of the equation: -2y = -x + 4. 3. Divide both sides of the equation by -2 to solve for y: y = (-x + 4) / -2.

So, the equation becomes y = (4 - x) / 2.

Evaluating y = 0.5x - 2

Now, let's evaluate the equation y = 0.5x - 2.

If we substitute x = 0 into the equation, we get:

y = 0.5(0) - 2, y = -2.

Therefore, when x = 0, y = -2.

I hope this helps! Let me know if you have any further questions.