Question

What is the value of the x variable in the solution to the following system of equations?

4x + 8y = 8
x + 2y = 2

Answer 1

You can find the y variable in terms of x from the second equation and then substitute for y in the first equation. Then you can solve for x.
x + 2y = 2
Subtracting x from both sides gives:
2y = 2 - x
Then dividing both sides by 2 gives:
y = 1 - x/2
Now can you substitute this value for y into the first equation?

Answer 2

i am not good at substitution :o

Answer 3

Actually the method I gave won't work, the reason being the second equation in the question is simply the first equation divided by 4 on both sides. Therefore we can only find x in terms of y by rearranging the second equation as follows:
x + 2y = 2
Subtracting 2y from both sides gives:
x = 2 - 2y

Answer 4

how would i do this equation now

Answer 5

There isn't enough information in the question to enable a single solution. There are an infinite number of solutions to x = 2 - 2y.
Are you sure you copied the question correctly?