When it comes to equations that have more than one symbol, you must always follow BODMAS: Brackets, Order, Division, Multiplication, Addition, Subtraction.
The equation we have is 2 + 8 x 3, using BODMAS we can place the brackets as such: 2 + (8 x 3)
Therefore, we must work out what is in the bracket before we can add 2:
8 x 3 = 24
24 + 2 = 26
And so, the value is 26.