Question

4x + 5 = 25 what is x?

Answer 1

$\text{We know:} \ 4x+5=25\\x=?\\----------\\ 4x+5=25 \\ 4x=25-5\\4x=20 \\ x=20:4 \\ \bold{x=5} \\ \\ \boxed{\text{The answer is \boxed{x=5}}}$

Answer 2

4x + 5 = 25
    -5      -5
4x = 20  (divide 4 from each side)

x = 5