The lines p and q intersect at point o. what is the value of x?
x =

2x + 13 = 3x - 3 

 Subtract 13 to both sides: 

 2x = 3x - 16 

Then it it will look like this, and you should divide them both by -1 to eliminate the negative on x

-x = -16

-1     -1

and the answer will be 16

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680