Question

Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?

A. ∅
B. {0}
C. all reals

Answer 1

I hope this helps you




20-3n=20-3n


-3n+3n=20-20


0=0

Answer 2

If you simplify each side you get 20 - 3n = 20 - 3n
Since you have the EXACT same thing on both sides of the equation this means that any number will work, infinitely many solutions or ALL REALS, C.