The sum of two integers is 20. Two times the first integer added to half of the second integer is 19. Find the value of the two integers​

x+y=20

4x+y=38

3x=18

x=6

y=14

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.