Asked by ,,,,,,,,,,,,
Solve for b, then find the value of b when a = 3. 4a = 2b − 7 (1 point) Responses - 9/2 , 5/2 , 19/2 , 17
Answers
Answered by
GPT 3.5
To solve for b, we start with the equation 4a = 2b - 7.
First, let's isolate the term with the variable b by adding 7 to both sides of the equation:
4a + 7 = 2b.
Next, we want to get b by itself, so we need to divide both sides of the equation by 2:
(4a + 7) / 2 = b.
Now we can simplify the right side of the equation:
2a + 7/2 = b.
Therefore, b is equal to 2a + 7/2.
To find the value of b when a = 3, we substitute a = 3 into the equation for b:
b = 2(3) + 7/2
b = 6 + 7/2
b = 6 + 3.5
b = 9.5.
So, when a = 3, the value of b is 9.5.
First, let's isolate the term with the variable b by adding 7 to both sides of the equation:
4a + 7 = 2b.
Next, we want to get b by itself, so we need to divide both sides of the equation by 2:
(4a + 7) / 2 = b.
Now we can simplify the right side of the equation:
2a + 7/2 = b.
Therefore, b is equal to 2a + 7/2.
To find the value of b when a = 3, we substitute a = 3 into the equation for b:
b = 2(3) + 7/2
b = 6 + 7/2
b = 6 + 3.5
b = 9.5.
So, when a = 3, the value of b is 9.5.