Question Solve for the value of $b$ in the equation $9+b=21$ .

Studdy Solution

STEP 1

Assumptions1. The equation is $9 + b =21$ . We are solving for the variable $b$

STEP 2

We can start solving for $b$ by subtracting9 from both sides of the equation. This will isolate $b$ on one side of the equation.
$b =21 -9$

STEP 3

Now, we can calculate the value of $b$ .
$b =21 -9 =12$ So, the solution to the equation $9 + b =21$ is $b =12$ .

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