SOLUTION: x-7y=6 5x+5y=110 What is the y coordinate of that?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: x-7y=6 5x+5y=110 What is the y coordinate of that?      Log On


   



Question 247663: x-7y=6
5x+5y=110
What is the y coordinate of that?

Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
Put the equations in slope-intercept form.
.
Solve: x-7y=6
subtract x from both sides...
-7y = -x +6
divide both sides by -7...
y = 1/7*x + 6/7
.
Solve: 5x+5y=110
divide both sides by 5...
x + y = 22
Subtract x from both sides...
y = -x + 22
.
Graph the two lines...
graph%28500%2C500%2C-25%2C25%2C-25%2C25%2C1%2F7%2Ax%2B6%2F7%2C+-x%2B22%29
.