The equation is .
Apply subtraction property of equality: Subtract 1 from each side.
\ (Additive identity property:
)
(Additive inverse property:
)
Apply multiplication property of equality: Multiply each side by 5.
\ (Cancel common terms)
(Multiply:
)
Apply division property of equality: if a = b, then.
(Divide each side by 4)
(Cancel common terms)
(Take square roots of each side)
Rewrite the expression using product property of square roots;
\For nonnegative real numbers a and b, .
Rewrite the () using imaginary unit; that is
where
.
Rewrite the expression using quotient property of square roots;
\For nonnegative real numbers a and b, .
(Find the square root:
)
(Find the square root:
)
The value of x.