SOLUTION: I need your help please. Solve the following system by substitution. If a unique solution does not exist, state whether the system is inconsistent or dependent. 8x � 4y = 16

Question 54434: I need your help please.
Solve the following system by substitution. If a unique solution does not exist, state whether the system is inconsistent or dependent. 8x � 4y = 16 and y = 2x - 4
Answer by tiffanyc(9) (Show Source): You can put this solution on YOUR website!
I'm assuming this is supposed to be solved without using matrices, if not, feel free to e-mail me and ill type up a new solution:
To solve by substitution, we need to isolate one variable and then plug the value of that variable into the second equation:
8x - 4y =16
y=2x-4
This is saying that x and y are the same numbers for both equations so we can plug the value of y (given in equation 2) into equation 1
8x -4(2x-4) =16
Multiply the coefficient of y through the brackets to get:
8x -8x +16 =16 so basically 16=16
This system is dependant, x could be either 0 or (1/2y+2)
RELATED QUESTIONS
I need your help with this please. Solve the following system by substitution. If a... (answered by stanbon)

I need help. Solve the following system by using either addition or substitution. If a... (answered by Edwin McCravy,venugopalramana)

Please help. I don't understand this. Solve the following system by substitution. If a... (answered by funmath)

help please Solve by substitution. If a unique solution does not exist, state whether... (answered by jim_thompson5910)

solve each of the following systems by using either addition or substitution. if a unique (answered by tutorcecilia)

Solve each of the following systems by using either addition or substitution. If a... (answered by Alwayscheerful)

I do not understand how to solve this, please help. Solve the following system by... (answered by funmath)

Please help. I do not even know what to call this. Solve each of the following systems... (answered by jim_thompson5910)

Can someone help me on this problem? I need to solve the following system by using... (answered by venugopalramana)