Question

2) (-x + y - 4 = 0,4x + y +1=0;​

Answer 1

Ответ:

-x+y-4=0

-x+y=4

x-y=-4

4x+y+1=0

4x+y+1-1=0-1

4x+y=0-1

Пошаговое объяснение:

Я не думаю что это правильно

но решила попробавать

Answer 2

To solve the system of equations:

1. -x + y - 4 = 0
2. 4x + y + 1 = 0

We can use the method of substitution or elimination. Let's use the method of elimination.

Step 1: Multiply the first equation by 4 to make the coefficients of y in both equations the same: 4*(-x + y - 4) = 4*0 -4x + 4y - 16 = 0

Now the two equations are:

1. -4x + 4y - 16 = 0
2. 4x + y + 1 = 0

Step 2: Add the two equations to eliminate the x variable: (-4x + 4y - 16) + (4x + y + 1) = 0 -4x + 4y + 4x + y - 16 + 1 = 0 5y - 15 = 0

Step 3: Solve for y: 5y = 15 y = 15 / 5 y = 3

Step 4: Substitute the value of y back into either of the original equations (let's use the first one): -x + y - 4 = 0 -x + 3 - 4 = 0 -x - 1 = 0

Step 5: Solve for x: -x = 1 x = -1

So, the solution to the system of equations is x = -1 and y = 3.