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What value of $x$ is a solution to this equation? $\newline$ $12 + x = 16$ $\newline$ Choices: $\newline$ (A) $x = 3$ $\newline$ (B) $x = 4$

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Which x satisfies an equation?

Full solution

Q. What value of

x

is a solution to this equation?

\newline

12 + x = 16

\newline

Choices:

\newline

(A)

x = 3

\newline

(B)

x = 4

Start Equation Solving: Start with the given equation. $\newline$ $12 + x = 16$ $\newline$ To solve for $x$ , we need to isolate $x$ on one side of the equation.
Subtract to Isolate x: Subtract $12$ from both sides of the equation to isolate $x$ . $\newline$ $12 + x - 12 = 16 - 12$ $\newline$ This simplifies to: $\newline$ $x = 4$
Check Solution: Check the solution by substituting $x$ back into the original equation. $12 + 4 = 16$ $16 = 16$ This confirms that $x = 4$ is the correct solution.

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