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Use the equation $p = n + 3$ to find the value of $p$ when $n = 7$ . $\newline$ $p =$ ____

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Find a value using two-variable equations

Full solution

Q. Use the equation

p = n + 3

to find the value of

p

when

n = 7

.

\newline

p =

____

Substitute $n$ with $7$ : Step $1$ : We know that $n = 7$ . Plug in the value for $n$ in $p = n + 3$ . $p = n + 3$ Substitute $n$ with $7$ . $p = 7 + 3$
Solve for p: Step $2$ : $p = 7 + 3$ . $\newline$ Solve for p. $\newline$ $p = 7 + 3 = 10$ .

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