Question

(5x - 36) : 18 = 12

(x -890) . (74 - x) = 0

Answer 1

1) \(\Rightarrow5x-36=216\)

\(\Rightarrow5x=252\Rightarrow x=\dfrac{252}{5}\)

2) \(\Rightarrow\left[{}\begin{matrix}x-890=0\\74-x=0\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=890\\x=74\end{matrix}\right.\)

Answer 2

(5x-36):18=12
5x-36=216
5x=252
x=50,4
(x-890)(74-x)=0
=>  x-890=0   hoặc 74-x=0
      x=890      hoặc  x=74