Answer: Tour A generated $210000000
Tour B generated $183000000
Explanation:
Let x represent the amount that Singer A's tour generated.
Let y represent the amount that Singer B's tour generated.
Singer A and Singer B had the two top-grossing concert tours for a certain year, together generating $393 million in ticket sales. It means that
x + y = 393000000- - - - - - - - 1
If singer B took in $27 million less than Singer A, it means that
x = y + 27000000
Substituting x = y + 27000000 into equation 1, it becomes
y + 27000000 + y = 393000000
2y = 393000000 - 27000000 = 366000000
y = 366000000/2 = $183000000
x = y + 27000000 = 183000000 + 27000000
x = $210000000