Answer:

Explanation:
Given equations:
Equation:1
Equation:2
As the coefficients of 'x' are same which will eliminate the terms of 'x':
Subtracting Equation:2 From Equation:1

Putting value of 'y' in either equation:1 or 2
Putting y=7 in equation:2


Subtracting '28' from both side:

Changing the sides:


The values are :
