SOLUTION: Find the solution to the system of equations. x + y = 4 and y = 2x + 1 I NEED HELP PLEASE !

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Find the solution to the system of equations. x + y = 4 and y = 2x + 1 I NEED HELP PLEASE !       Log On


   

Question 673607: Find the solution to the system of equations.
x + y = 4 and y = 2x + 1
I NEED HELP PLEASE !
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
y=2x+1
x+y=4
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x+2x+1=4
3x=3
x=1
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1+y=4
y=3
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(1,3)
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y=2x+1
3=2*1+1