Solve the system using substitution. What is the x- or y-coordinate of the solution?
2x - 3y = -1
x - 2y = -5

Question

Solve the system using substitution. What is the x- or y-coordinate of the solution? 
2x - 3y = -1
x - 2y = -5

anonymous · Answer

these are equations of lines and you will get a solution if they intersect. You can try to plot by hand and see the point of intersection. 

For substitution, you can see that the second equation can give you x by simply adding 2y on both sides. Use that value in the first equation. 

Will that work for you?

anonymous · Answer

Which One Would Be The Answer ?

A.-11
B.-10
C.9
D.11

anonymous · Answer

@rkopen

anonymous · Answer

x = 2y+5

use this in (1) so,
2(2y+5) -3y = -1
4y + 10 -3y = -1
y + 10 = -1
y = 11

now plug this into
x = 2y + 5
x = 22 + 5 = 27

anonymous · Answer

Oh, my x value was wrong

x = 2y - 5

can you work from there?