To find the solution to both equations, we can start by graphing them on the same coordinate system.
First, let's graph the equation 4x + 3y = 15. We can rewrite this equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.
4x + 3y = 15
3y = -4x + 15
y = (-4/3)x + 5
Now, let's graph the equation y = x + 5. This equation is already in slope-intercept form, with a slope of 1 and a y-intercept of 5.
Now, we can plot the graphs of both equations on the same coordinate system.
The intersection point of the two lines is (2, 7).
Therefore, the solution to both equations is x = 2 and y = 7.