.
3(x + 2y) = 10y + 5,
2(x + 2y) = 3x + 2.
Collect all the terms with the unknowns on the left side:
3x + 6y - 10y = 5,
2x + 4y - 3x = 2.
Simplify:
3x - 4y = 5, (1)
-x + 4y = 2. (2)
Add equations (1) and (2). You will get
2x = 5 + 2 = 7, -----> x = 3.5.
Then from (2) 4y = 2 + x = 2 + 3.5 = 5.5, y =
= 1.375.
Answer. x = 3.5, y = 1.375.