Answer:
x=8, y=14; x= senior citizens tickets, y= child tickets
Step-by-step explanation:
38=3x+y
52=3x+2y
move expression and change sign,
-3x+38=y
-3x=y-38
change the signs on both sides of equation
3x=-y+38
substitute
52=-y+38+2y
solve for y
y=14
substitute into the expressions
52=3x+2x14
solve for x, multiply the numbers
52=3x+28
move variables
-3x+52=28
move constant
-3x=28-52
calculate
-3x=-24
x=8
Don't know how to do Cramer's rule, but I hope this helps, at least
