Answer:
Step-by-step explanation:
2) the given system of equations is expressed as
y = 2x + 5 - - - - - - - - - - - - - - 1
y - 2x = 1- - - - - - - - - - - - - - 2
Substituting equation 1 into equation 2, it becomes
2x + 5 - 2x = 1
2x - 2x = 1 - 5
0 = - 4
The result of plotting both equations on a graph would be 2 parallel lines that will never intersect. Therefore, there are no solutions
3) the given system of equations is expressed as
3x - 2y = 9 - - - - - - - - - - - - - 1
- 6x + 4y = 1- - - - - - - - - - - - - 2
Multiplying equation 1 by 6 and equation 2 by 3, it becomes
18x - 12y = 54
- 18x + 12y = 3
Adding both equations, it becomes
0 + 0 = 57
Therefore, there are no solutions.
