SOLUTION: How do you solve 4x-y=19? Do you replace in the x and then a y with any #?

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Question 97802: How do you solve 4x-y=19? Do you replace in the x and then a y with any #?
Found 2 solutions by checkley71, elima:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
YES YOU CAN SET UP A TABLE WITH X & Y VALUES BY SOLVING EACH SET OF NUMBERS OR YOU CAN SOLVE THIS BY USEING THE LINE EQUATION Y=mX+b
4X-Y=19
-Y=-4X+19
Y=4X-19 NOW WE GRAPH THIS LINE:
+graph%28+300%2C+200%2C+-6%2C+5%2C+-20%2C+10%2C+y+=+4x+-19%29+ (graph 300x200 pixels, x from -6 to 5, y from -20 to 10, y = 4x -19).
Now you have a diagram & an equation you can use to fill in the table values thus:
set x=0 & solve for y
-y=4*0-19
y=19 when x=0 answer.
set y=0 solve for x
0=4x-19
4x=19
x=19/4 when y=0 answer.

Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
You choose a value for one of the variables and then solve the equation for the other.
4x-y=19
choose a value for x;
x=1
4(1)-y=19
4-y=19
-y=15
y=-15
If you are asked to graph, then you should choose at least 3 values for x and then solve for y.
:)