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Use the equation $r = h - 6$ to find the value of $r$ when $h = 7$ . $\newline$ $r =$ ____

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Find a value using two-variable equations

Full solution

Q. Use the equation

r = h - 6

to find the value of

r

when

h = 7

.

\newline

r =

____

Step $1$ : Substitute $h$ with $7$ : Step $1$ : We know that $h = 7$ . $\newline$ Plug in the value for $h$ in $r = h - 6$ . $\newline$ $r = h - 6$ $\newline$ Substitute $h$ with $7$ . $\newline$ $r = 7 - 6$
Step $2$ : Solve for r: Step $2$ : $r = 7 - 6$ . Solve for r. $r = 7 - 6 = 1$ .

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