Given the following two equations y 20x 320 y 50x 180 Th

Given the following two equations: y = 20x + 320 y = 50x + 180 These two lines intersect at the point where the x value is equal to

Solution

Given that

y = 20x + 320

y = 50x + 180

If left hand side of both equations are equal then equating right hand side of both equations

  20x + 320 = 50x + 180

320 - 180 = 50x - 20x

140 = 30x

x = 140 / 30

x = 14 / 3

Therfore,

Value of x = 14 / 3