Question

What value of n makes the equation true?


n – 27.3 = 15.9









A.
11.4







B.
12.4







C.
42.2







D.
43.2

Answer 1

d right

Answer 2

Try to modify the equation so n would be isolated.

Try to retriceboth sides by 27.3.

Like this: \(n-27.3\color{red}{+27.3}=15.9\color{red}{+27.3}\\n\cancel{-27.3}+\cancel{27.3} = 15.9+27.3\\n = 15.9+27.3\\n=\cdots~?\)

Answer 3

Yep D

Answer 4

add both sides by 27.3*