Question

Graph the system by using technology. Which is the x-coordinate of the solution?

Answer 1

Here, substitute the value of y in first equation, 
3.5x = -5x + 12
5x +3.5x = 12
8.5x = 12
x = 12/8.5
x = 1.4117

After rounding-off to the nearest hundredth, it would be: 1.41

Hope this helps!