What is the value of n?
n–2=10n+42n–2=10n+4/2

n-2= (10n+4)/2 what is n

simplify

n-2 = 10n/2 + 4/2

n-2 = 5n + 2

subtract 5n to both sides

n - 2 - 5n = 5n + 2 - 5n

simplify

-4n - 2 = 2

add 2 to both sides

-4n - 2 + 2 = 2 + 2

simplify

-4n = 4

divide both sides by -4

-4n/-4 = 4/-4

simplify

n = -1

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

the answer is 99.