Question

solve the equation.be sure to check your solution.
-12 = b - 1
○ {-13}
○ {13}
○ {-11}
○ {11}

Explanation:

Step1: Isolate variable b

Add 1 to both sides.
$$-12 + 1 = b - 1 + 1$$

Step2: Simplify both sides

Calculate the sums.
$$-11 = b$$

Step3: Verify the solution

Substitute $b=-11$ into original equation.
$$-12 = -11 - 1$$
$$-12 = -12$$

Answer:

C. {-11}