Given:
The system of equations is given as 2x + 5y = -49..................(a)
-2x + 8 y = -68................(b)
Find:
we have to find the values of x and y.
Explanation:
by adding equation (a) and (b), we get
2x - 2x + 5y +8y = -49 - 68
13y = -117
y = -117/13
y = -9
put y = -9 in erquation (a), we get
2x + 5(-9) = -49
2x = -49 + 45
2x = -4
x = -4/2
x = -2
Therefore, the value of x = -2 and y = -9
