Make t the subject of the familiar:

3𝑉
(π‘‰π‘‘βˆ’π‘Š)
= 1 + U
A. t =
3𝑉
(1+ 𝑒}
+
π‘Š
𝑉
B. t =
3𝑉
𝑣(1+ 𝑒}
+
π‘Š
𝑉
C. t =
3
(1+ 𝑒}
+
π‘Š
𝑉
D. 3
𝑣(1+ 𝑒}
+
π‘Š
𝑉

To make t the subject of the equation, we want to isolate t on one side of the equation.

Starting with the given equation:
(3𝑉) / (𝑉𝑑 βˆ’ π‘Š) = 1 + U

We can start by multiplying both sides of the equation by (𝑉𝑑 βˆ’ π‘Š) to eliminate the denominator:
3𝑉 = (𝑉𝑑 βˆ’ π‘Š) * (1 + U)

Next, we distribute the (1 + U) term on the right side of the equation:
3𝑉 = 𝑉𝑑(1 + U) βˆ’ π‘Š(1 + U)

Expanding the equation further:
3𝑉 = 𝑉𝑑 + 𝑉𝑑U βˆ’ π‘Š βˆ’ π‘ŠU

Next, we want to gather all the terms containing 𝑑 on one side of the equation. We do this by subtracting 𝑉𝑑 from both sides:
3𝑉 - 𝑉𝑑 = 𝑉𝑑U βˆ’ π‘Š βˆ’ π‘ŠU

Rearranging the terms:
𝑑(3𝑉 βˆ’ 𝑉) = 𝑉𝑑U βˆ’ π‘Š βˆ’ π‘ŠU

Finally, we want to isolate t, so we divide both sides of the equation by (3𝑉 βˆ’ 𝑉):
𝑑 = (𝑉𝑑U βˆ’ π‘Š βˆ’ π‘ŠU) / (3𝑉 βˆ’ 𝑉)

The final result is:
𝑑 = (𝑉𝑑U βˆ’ π‘Š βˆ’ π‘ŠU) / (3𝑉 βˆ’ 𝑉)

Therefore, the correct option is D. 3𝑣(1+ 𝑒)/(𝑣 - π‘Š)

To make t the subject of the equation 3𝑉 / (π‘‰π‘‘βˆ’π‘Š) = 1 + U, we follow these steps:

Step 1: Multiply both sides of the equation by (π‘‰π‘‘βˆ’π‘Š):

(π‘‰π‘‘βˆ’π‘Š) * (3𝑉 / (π‘‰π‘‘βˆ’π‘Š)) = (1 + U) * (π‘‰π‘‘βˆ’π‘Š)

Simplifying the left-hand side:

3𝑉 = (1 + U) * (π‘‰π‘‘βˆ’π‘Š)

Step 2: Expand the right-hand side:

3𝑉 = (1 + U)π‘‰π‘‘βˆ’(1 + U)π‘Š

Step 3: Distribute (1 + U) to terms inside the parentheses:

3𝑉 = 𝑉𝑑 + π‘ˆπ‘‰π‘‘ βˆ’ π‘Š βˆ’ π‘ˆπ‘Š

Step 4: Combine like terms:

3𝑉 = 𝑉𝑑 + π‘ˆπ‘‰π‘‘ βˆ’ π‘Š βˆ’ π‘ˆπ‘Š

3𝑉 = (1 + π‘ˆ)𝑉𝑑 βˆ’ (1 + π‘ˆ)π‘Š

3𝑉 = (1 + π‘ˆ)𝑉𝑑 βˆ’ π‘Š(1 + π‘ˆ)

Step 5: Move π‘Š(1 + π‘ˆ) to the right-hand side:

3𝑉 + π‘Š(1 + π‘ˆ) = (1 + π‘ˆ)𝑉𝑑

Step 6: Divide both sides of the equation by (1 + U)𝑉:

(3𝑉 + π‘Š(1 + π‘ˆ)) / (1 + π‘ˆ)𝑉 = 𝑑

Finally, we have:

𝑑 = (3𝑉 + π‘Š(1 + π‘ˆ)) / [(1 + π‘ˆ)𝑉]

Therefore, the answer is A. t = (3𝑉 + π‘Š(1 + π‘ˆ)) / [(1 + π‘ˆ)𝑉].