Answer:
x=2, y=7 (2,7)
Explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
And you know right this girl has how many years of the first type of quantity of correspond to one unit of the second type of quantity
The method of successive differences uses subtraction to the one number to the next and the process goes on until the difference settles constant which is not equal to zero. In this case, the constant difference reaches 25. Reversing the process to get the next term, the answer is 2509.
2.2 - 2.5 - 3.4
-3.7
.................
