The equation is .
To find the x-intercept.
\The y-intercept is the value of x, when y = 0.
\ (Substitute y = 0 in original equation)
(Multiply:
)
(Apply Additive identity property:
)
Apply division property of equality: If a = b then .
(Divide each side by 2)
(Cancel common terms)
(Divide:
)
The x-intercept is 7.