Question

X = 10 - y
3x - 2 = y

Using the two equations above, solve for y.

Answer 1

x = 10 - y

3x - 2 = y

3(10 - y) - 2 = y

30 - 3y - 2 = y

28 - 3y = y

28 = 4y

7 = y

x = 10 - 7

x = 3

(3, 7)

Explanation: