Answer:
The x-intercept=7
Explanation:
Step 1
Given the equation;
y=-x+7, is a linear equation
Step 2
The x-intercept is the value of x when the graph crosses the x-axis. At this point, the value of y=0
Step 3
Substitute the value of y in the linear equation above to solve for the x-intercept.
Given;
y=0
And the linear equation is;
y=-x+7
replace;
0=-x+7
x=7
The x-intercept=7