Question

Solve the following equation for the variable given

Answer 1

x =
`(10y + 18)/(2)`

s =
`(n)/(2)`

Explanation:

2x - 10y = 18

2x = 10y + 18

x =
`(10y + 18)/(2)`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

n =
`(s+360)/(180)`

180n = s + 360

s = 180n/360

s =
`(n)/(2)`

Answer 2

x = 5y + 9

Explanation:

2x - 10y = 18

2x = 18 + 10y (add 10y to both sides)

x = 9 + 5y (divide both sides by 2 to isolate the variable)

x = 5y + 9 (just reorder to have the variable first)