Solve each system by elimination and determine how many solutions the system has

Solve each System by Elimination and determine how many solutions the system has; i.e. (one solution, no solution, infinite many solutions) Pleas show work, thank you!

16.) 16x + 14y = -14
8x + 7y = -15

17.) -4x +10y = -8
-2x + 5y = -4

16x + 14y = -14
8x + 7y = -7

8x + 7y = -15

no solution

-4x + 10y = -8
-2x + 5y = -4

-2x + 5y = -4

infinite solutions