The equation is .
According to addition property of equality: Add 4p to each side.
\ (Apply commutative property of addition:
)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
According to subtraction property of equality: Subtract 5 from each side.
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
According to division property of equality: then
.
(Divide each side by 5)
(Cancel common terms)
(Divide:
)
Verify:
\To check the solution, substitute in original equation.
(Multiply:
)
(Subtract:
: Add:
)
Compare the values, the equation is true. The solution is .
The value of
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\