The product of my age is five, then decreased by twenty and finally increased by my age times the opposite of three is fifty, how old am i

answer:

step-by-step explanation:

the formula for nth term of a the sequence is given as  

finding the 10th term means finding   , which means to plug in 10 into n, in the nth term formula.

answer:

  (x, y) = (3, 5)

step-by-step explanation:

it works well to divide the first equation by 2, so the system is

now, adding the two equations together gives

  2x = 6

  x = 3 . . divide by 2

substituting that into either equation gives you an equation for y.

  3 - y = -2

  5 - y = 0 . . add 2

  5 = y . . . . add y

the solution is (x, y) = (3, 5).