Question

Answer 1

(x - 1)/18 = -4/15

(x - 1).15 = -4.18

x - 1 = -72 : 15

x - 1 = -24/5

x = -24/5 + 1

x = -19/5

Answer 2

\(\dfrac{x-1}{18}=\dfrac{-4}{15}\)

=>\(x-1=-\dfrac{4}{15}\cdot18\)

=>\(x-1=-\dfrac{72}{15}\)

=>\(x-1=-\dfrac{72}{15}=-\dfrac{24}{5}\)

=>\(x=-\dfrac{24}{5}+1=-\dfrac{19}{5}\)