Question

X x 18=9x ??? what number is missing

Answer 1

x + 18 = 9x

collect like terms

18 = 9x - x

18 = 8x

Divide through by 8

`\begin{gathered} (8x)/(8)\text{ = }(18)/(8) \\ x\text{ = }(18)/(8)\text{ = }(9)/(4) \end{gathered}`