Real numbers a and b satisfy
a + ab = 250
a - ab = -240
Enter all possible values of a, separated by commas.
a = 3, b = -7
a + ab = 250,
Add the 2 equations together:
2a == 10
a ==10 / 2 ==5
Sub the value of a in the first equation:
5 + 5b ==250
5b ==250 - 5 ==245
b==245 / 5 ==49
So, the values of a, b==(5, 49)
