To determine the number of solutions to a system of linear equations, we need to analyze the relationship between the two equations.
The given system of equations is:
y = x + 5 ------(1)
y = -x + 5 ------(2)
In this case, both equations represent lines in the coordinate plane. We can compare the slopes of the lines to determine the number of solutions.
The slope-intercept form of a linear equation is y = mx + b, where m represents the slope of the line.
In equation (1), the slope is 1, and in equation (2), the slope is -1.
Since the slopes of the two lines are different, the lines will intersect at one point, representing one solution.
Therefore, the number of solutions to this system of linear equations is C) 1.