Question

Use the substitution property of equality to complete the following statement.

Answer 1

Given:-

`8x+y=12`

To find x when y is 3.

So now we substitute,

`\begin{gathered} 8x+y=12 \\ 8x+3=12 \\ 8x=12-3 \\ 8x=9 \\ x=(9)/(8) \end{gathered}`

So the value is,

`(9)/(8)`