Question 722470
x + y = 10 ----> x = 10 - y
3x = 8y - 3


Substitute x = 10-y into the second equation.


3(10 - y) = 8y - 3
30 - 3y = 8y - 3
-11y = -33
y = 3


solution: (x, y) = (7, 3)