SOLUTION: Use the graphing method to solve the system. 7x+3y=5 2x-y=-1 3x-22y=12 x+2y=7

Algebra ->  Graphs -> SOLUTION: Use the graphing method to solve the system. 7x+3y=5 2x-y=-1 3x-22y=12 x+2y=7       Log On


   

Question 168253: Use the graphing method to solve the system.
7x+3y=5 2x-y=-1
3x-22y=12 x+2y=7
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
7x%2B3y=5-------------------> A
3x-22y=12-----------------> B
2x-y=-1 ------------------> C
x%2B2y=7 -------------------> D
In A:
3y=5-7x ---> y=%285%2F3%29-%287%2F3%29x
In B:
22y=3x-12 ---> cross%2822%29y%2Fcross%2822%29=%283x-12%29%2F22
y=%283%2F22%29x-%2812%2F22%29 ---> y=%283%2F22%29x-%286%2F11%29
In C:
y=2x%2B1
In D:
2y=7-x ---> cross%282%29y%2Fcross%282%29=%287-x%29%2F2
y=%287%2F2%29-%28x%2F2%29
See graph:

*Note:
RED Line = A; GREEN Line= B; BLUE Line=C; PURPLE Line=D
.
Thank you,
Jojo