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Solve for $d$ . $\newline$ $d - 12 = 1$ $\newline$ $d =$ _____

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Solve one-step addition and subtraction equations with whole numbers

Full solution

Q. Solve for

d

.

\newline

d - 12 = 1

\newline

d =

_____

Isolate $d$ : $d - 12 = 1$ $\newline$ To solve for $d$ , we need to isolate $d$ on one side of the equation. $\newline$ We can do this by adding $12$ to both sides of the equation to cancel out the $-12$ on the left side. $\newline$ $d - 12 + 12 = 1 + 12$
Add $12$ : $d = 13$ $\newline$ After adding $12$ to both sides, we find that $d$ equals $13$ . $\newline$ This is the value of $d$ that satisfies the equation.

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