To solve the system of equations, we can use the method of elimination.
First, let's multiply the second equation by 2 to make the coefficients of x in both equations the same:
2(2x - 4y) = 2(-16)
4x - 8y = -32
Now we have:
2x + 8y = 8
4x - 8y = -32
Adding the two equations together:
(2x + 8y) + (4x - 8y) = 8 + (-32)
6x + 0y = -24
6x = -24
Dividing both sides of the equation by 6:
x = -24/6
x = -4
Now substitute the value of x into one of the original equations. Let's use the first equation:
2x + 8y = 8
2(-4) + 8y = 8
-8 + 8y = 8
8y = 8 + 8
8y = 16
Dividing both sides of the equation by 8:
y = 16/8
y = 2
Thus, the solution to the system of equations is x = -4 and y = 2.
Solve the system of equations.
2x+8y=8
2x−4y=−16
(1 point)
1 answer