1.
two times a number, x, plus 3 times a number, y, equals 50. four times x minus 2 times y equals 4. what are the numbers?
x = 7, y = 12
x = 19, y = 4
x = 10, y = 18
x = -11, y = 24
2.
one times a number x, plus 2 times a number y, equals 9. negative one times x minus 3 times y equals -14. what are the numbers?
x = 7, y = 12
x = -1, y = 5
x = 5, y = 1
x = -11, y = 24

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.