SOLUTION: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent. Y = -3x + 19 Y = 2x – 1

Algebra ->  Expressions-with-variables -> SOLUTION: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent. Y = -3x + 19 Y = 2x – 1       Log On


   

Question 317492: Solve each system by substitution. Determine whether the
equations are independent, dependent, or inconsistent.
Y = -3x + 19
Y = 2x – 1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.y+=+-3x+%2B+19
2.y+=+2x+%96+1
Substitute eq. 2 into eq. 1,
2x-1=-3x%2B19
5x=20
highlight%28x=4%29
Now use either equation to solve for y.
y=2x-1=2%284%29-1=8-1
highlight%28y=7%29
One solution, the equations are independent.