Here, we want to find the value of x, given g(x)
What we have to do here is to substitute the value of g(x) into the equation
We have this as follows;
[tex]\begin{gathered} 12\text{ = 10x+2} \\ 12-2\text{ = 10x} \\ 10x\text{ = 10} \\ x\text{ = }\frac{10}{10} \\ x\text{ = 1} \end{gathered}[/tex]