SOLUTION: Suppose that the line whose equation is 12x+7y+20=3x is parallel to a line that has an x-intercept of 18. What is the equation of the second line in slope-intercept form?

Algebra ->  Linear-equations -> SOLUTION: Suppose that the line whose equation is 12x+7y+20=3x is parallel to a line that has an x-intercept of 18. What is the equation of the second line in slope-intercept form?      Log On


   



Question 1058641: Suppose that the line whose equation is 12x+7y+20=3x is parallel to a line that has an x-intercept of 18. What is the equation of the second line in slope-intercept form?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!

To solve this we need to put the first line in slope intercept form (to get the slope). Then we can write the equation for the parallel line.
+12x+%2B+7y+%2B+20+=+3x+
++7y+=+-9x+-+20+
++++y+=+-%289%2F7%29x+-+%2820%2F7%29+
So the parallel line has the equation
+y+=+-%289%2F7%29x+%2B+18+