To solve for b, we need to isolate the b term.
Let's start by moving the -7 term to the other side of the equation:
4a + 7 = 2b
Now we can divide both sides of the equation by 2 to solve for b:
(4a + 7) / 2 = b
Simplifying this expression gives us:
2a + 7/2 = b
Now, we can substitute a = 3 into the expression to find the value of b:
2(3) + 7/2 = 6 + 7/2 = 12/2 + 7/2 = 19/2
Therefore, the value of b when a = 3 is 19/2.
The correct answer is C. 19/2.
Solve for b, then one the value of b when a = 3
4a = 2b - 7
A. -9/2
B. 5/2
C. 19/2
D. 17
1 answer
1 answer