write one address instruction for given A + (B*C)-(D*E)

Sure, here is an example of how you might write an address instruction for the given expression A + (BC)-(DE) in assembly language:

MOV R1, B
MUL R1, C
MOV R2, D
MUL R2, E
SUB R1, R2
ADD R1, A

Here's a step-by-step breakdown:

1. MOV R1, B: This moves the value of B into register R1.
2. MUL R1, C: This multiplies the value in register R1 (which is B) by C, and stores the result in R1.
3. MOV R2, D: This moves the value of D into register R2.
4. MUL R2, E: This multiplies the value in register R2 (which is D) by E, and stores the result in R2.
5. SUB R1, R2: This subtracts the value in register R2 (which is DE) from the value in register R1 (which is BC), and stores the result in R1.
6. ADD R1, A: This adds the value of A to the value in register R1 (which is now (BC)-(DE)), and stores the final result in R1.

Please note that the exact syntax and register names may vary depending on the specific assembly language you are using.