Question

Solve the system by substitution.
y = 4x – 8
Y = 2x

Answer 1

To solve the system of equations by substitution, substitute the value of y from one equation into the other equation. Solve the resulting equation for x, and then substitute the value of x back into either of the original equations to find the value of y.

Step-by-step explanation:

To solve the system of equations by substitution, we need to substitute the value of y from one equation into the other equation. We are given the equations y = 4x - 8 and Y = 2x. We can substitute 2x for y in the first equation:

2x = 4x - 8

Next, we can solve this equation for x:

2x - 4x = -8

-2x = -8

x = 4

Now, we can substitute the value of x back into either of the original equations to find the value of y:

y = 4(4) - 8

y = 16 - 8

y = 8

Therefore, the solution to the system of equations is x = 4 and y = 8.

Answer 2

first one if u solve for y is y=4x-8

solve for x is x =y/4+2

second one is if u solve for y is y=2x

if u solve for x is x =y/2

Step-by-step explanation:

hope this help