Final answer:
The missing number that will make equation A equivalent to equation B is 2.
Step-by-step explanation:
In equation A, 3+5 = 8. In equation B, the expression (3+5)/_ = 4 is given. To find the missing number, we need to solve for _. We can start by isolating the variable by multiplying both sides of the equation by _. This gives us (3+5) = 4*_. Simplifying further, 8 = 4*_. We can now divide both sides of the equation by 4 to solve for _. The missing number is 2, as 8/4 = 2.
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