Question

What is the value of x in the equation 8x – 2y = 48, when y = 4?

Answer 1

Hey there!

So, if $y=(4)$, this would mean that we would do $(2 \ * \ 4)$ and from this, we would get 8. 

We will then need to find what is $(x)$.

$(x) = 7$

$8*7$ = $\boxed{56}$

So, the equation would really look like . . .

$\left[\begin{array}{ccc} 8*(7)-2*4 = 48 \\ \\ x=\boxed{7}\end{array}\right]$

Hope this helps.
~Jurgen