Answer:
The answer to your question is: (2a - 1) / 4
Step-by-step explanation:




Answer:
B
Step-by-step explanation:
A. 37 isn't a number sentence
B. 49 + (-12) = 49-12. They're the same thing because 49 minus 12 can also be written as 49 plus negative 12
C. 49 + 12 doesn't equal 49-12
D. 12- 49 = -37 which isn't equivalent to 49-12.
Hope this helps!!!
Answer:
solution given:
balanced: C4H6O3 + H2O −−→2 C2H4O2