Question

The value of b when solving equation 2(b+12)=16 is:
A 4
B -4
C 6
D -6

Answer 1

The value of b when solving equation 2(b+12)=16 is:

B -4

Explanation:

To solve the equation 2(b + 12) = 16, we need to find the value of b. To do that, we first need to isolate the variable b by undoing the operations in the equation.

The equation is 2(b + 12) = 16, which can be rewritten as 2b + 24 = 16.

Next, we need to subtract 24 from both sides of the equation:

2b + 24 - 24 = 16 - 24

This gives us:

2b = -8

Finally, to isolate b, we need to divide both sides of the equation by 2:

(2b) / 2 = (-8) / 2

This gives us:

b = -4

So the value of b is -4, and the correct answer is B: -4.

Answer 2

Answer: -4 (choice B)

Work Shown:

2(b+12) = 16

b+12 = 16/2

b+12 = 8

b = 8-12

b = -4

Another approach:

2(b+12)=16

2b+24 = 16

2b = 16-24

2b = -8

b = -8/2

b = -4