Question

3х - 6у + 5 = 0,2y = x-7​

Answer 1

Ответ:

3x-6y+5-5=0-5

3x-6y=-5

Объяснение:

2x-x=-7

-x+2y=-7

x-2y=7

Answer 2

To solve this system of equations, you can use the method of substitution or elimination. In this case, I'll use the substitution method.

Given the system of equations:

1. 3x - 6y + 5 = 0
2. 2y = x - 7

First, solve the second equation (Equation 2) for x:

2y = x - 7

Add 7 to both sides to isolate x:

x = 2y + 7

Now that you have an expression for x in terms of y, you can substitute this expression into the first equation (Equation 1):

3x - 6y + 5 = 0

Replace x with 2y + 7:

3(2y + 7) - 6y + 5 = 0

Now, distribute the 3 on the left side:

6y + 21 - 6y + 5 = 0

Notice that the terms with 6y cancel each other out:

21 + 5 = 0

Combine like terms:

26 = 0

Since the equation 26 = 0 is not true, this system of equations is inconsistent. It means there is no solution that simultaneously satisfies both equations.