Solve the system using substitution {4y+19 = * 3y-*=-13

3y - (4y + 19) = - 13;

3y - 4y - 19 = - 13;

- y - 19 = - 13;

-y = 19 - 13;

-y = 6;

y = - 6;

Then, x = 4 * ( - 6) + 19;

x = - 24 + 19;

x = - 5;

The solution of the system is x = - 5 and y = - 6;