Answer:

Step-by-step explanation:
So we know that:

And we want to figure out the value of y when x is 8.
So first, substitute 8 into the first equation:

Solve for t. Subtract 2 from both sides:

Divide both sides by 2:

Now, substitute this into the second equation for t:

Subtract:

So, the value of y is -18.
And we're done!
Count each square at the bottom and the side side and multiply them so it would be 5x2 =10