SOLUTION: Here is another problem that I am confused with. Some of the problems are one way and then they are changed around and that when I get lost.
y = 2x + 1
x + y = 4
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Question 264736: Here is another problem that I am confused with. Some of the problems are one way and then they are changed around and that when I get lost.
y = 2x + 1
x + y = 4
Found 2 solutions by jim_thompson5910, mananth:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the second equation.
Plug in
Combine like terms on the left side.
Subtract from both sides.
Combine like terms on the right side.
Divide both sides by to isolate .
Reduce.
Move back to the first equation.
Plug in
Multiply
Add
So the solutions are and which form the ordered pair (1,3)
This means that the system is consistent and independent.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Here is another problem that I am confused with. Some of the problems are one way and then they are changed around and that when I get lost.
y = 2x + 1
x + y = 4
whenever you get such a problem first you get all the variables on the left side of the equation and the numbers on the right side.
y-2x=1
y+x=4
subtract
-3x=-3
3x=3
x=1
y+1=4
y=4-1 =3
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