Question

1/2(x-4y)=x-y x/2+y=0 способ сложения​

Answer 1

Ответ:Легкотня)))

Раскрываем скобки, если нужны подробности, могу скинуть фото

Получаем:

1/2-у=0 и х/2 +у=0 Складываем эти уравнения

1+х/2=0

Блин, а дальше не знаю, может где-то не так что-то сделал?

Answer 2

To add the two equations together, we need to align the variables and their coefficients so that we can combine them. First, we can rewrite the second equation as:

x/2 + y = 0

To eliminate the fraction in the second equation, we can multiply both sides by 2:

2 * (x/2 + y) = 2 * 0 x + 2y = 0

Now we have the two equations:

1/2(x - 4y) = x - y ........(Equation 1) x + 2y = 0 ........(Equation 2)

Next, we need to get rid of the fraction in Equation 1. To do that, we can multiply both sides of Equation 1 by 2:

2 * (1/2(x - 4y)) = 2 * (x - y)

This simplifies to:

x - 4y = 2(x - y)

Now, let's simplify the equation further:

x - 4y = 2x - 2y

Now, we'll move all the terms with 'x' to the left side and all the terms with 'y' to the right side:

x - 2x = 2y - 4y

-x = -2y

Finally, we can solve for 'y':

y = -x / -2

y = x / 2

Now that we have found the value of 'y', we can substitute it back into either Equation 1 or Equation 2 to find the value of 'x'. Let's use Equation 2:

x + 2y = 0

Substitute y with x / 2:

x + 2(x / 2) = 0

x + x = 0

2x = 0

x = 0

Now we have the values of 'x' and 'y':

x = 0 y = x / 2 = 0 / 2 = 0

So, the solution to the system of equations is x = 0 and y = 0.