SOLUTION: Hello, may I please have help for this question? Solve the following linear equations (use the substitution method), giving the solution as a coordinate pair in the form

Algebra ->  Linear-equations -> SOLUTION: Hello, may I please have help for this question? Solve the following linear equations (use the substitution method), giving the solution as a coordinate pair in the form      Log On


   

Question 879145: Hello,
may I please have help for this question?
Solve the following linear equations (use the substitution method),
giving the solution as a coordinate pair in the form (x,y).
y = 9x + 9
y = 4x - 9
thank you.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
9x+%2B+9+=+4x+-+9
5x=-18
x=-18%2F5
Then use either equation to solve for y
y=9%28-18%2F5%29%2B9
y=-162%2F5%2B45%2F5
y=-117%2F5