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What value of $d$ is a solution to this equation? $\newline$ $2d = 12$ $\newline$ Choices: $\newline$ (A) $d = 6$ $\newline$ (B) $d = 7$

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Which x satisfies an equation?

Full solution

Q. What value of

d

is a solution to this equation?

\newline

2d = 12

\newline

Choices:

\newline

(A)

d = 6

\newline

(B)

d = 7

Identify Operation: Identify the operation needed to solve for $d$ . The equation is $2d = 12$ , which means we need to isolate $d$ by performing the inverse operation of multiplication, which is division.
Divide by $2$ : Divide both sides of the equation by $2$ to solve for $d$ . To isolate $d$ , we divide both sides of the equation by $2$ , which gives us $d = \frac{12}{2}$ .
Perform Division: Perform the division to find the value of $d$ . Calculating the division from the previous step, we get $d = 6$ .
Check Solution: Check the solution by substituting the value of $d$ back into the original equation. $\newline$ Substituting $d = 6$ into the original equation gives us $2 \times 6 = 12$ , which is true.

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