Solve for b, then find the value of b when a = 3.

4a = 2b − 7
(1 point)
Responses

–nine-halves

five-halves

nineteen-halves

17

1 answer

To solve for b, we need to isolate b on one side of the equation.

4a = 2b - 7

Adding 7 to both sides:

4a + 7 = 2b

Now, divide both sides by 2:

(4a + 7) / 2 = b

Simplifying the expression:

2a + 7/2 = b

Now, substitute a = 3 into the equation to find the value of b:

2(3) + 7/2 = b

6 + 7/2 = b

12/2 + 7/2 = b

19/2 = b

Therefore, when a = 3, the value of b is nineteen-halves.