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Solve for $b$ . $\newline$ $3 - (-2b) = 7$ $\newline$ $b =$ _____

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Solve equations: mixed review

Full solution

Q. Solve for

b

.

\newline

3 - (-2b) = 7

\newline

b =

_____

Remove double negative: Simplify the equation by removing the double negative. $3 + 2b = 7$
Isolate variable $b$ : Isolate the variable $b$ by subtracting $3$ from both sides. $\newline$ $2b = 7 - 3$
Simplify right side: Simplify the right side of the equation. $2b = 4$
Divide by $2$ : Divide both sides by $2$ to solve for $b$ . $\newline$ $b = \frac{4}{2}$
Calculate final value: Calculate the final value of $b$ . $b = 2$

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