Answer:
x=1
Explanation:
We are given a pair of linear equation in x and y . We have to solve them for x and y using substituting method
first equation:
4x+y=0
y=-4x
Equation second :
2y+x=-7
replacing the value of y in this equation we get
2(-4x)+x=-7
-8x+x=-7
-7x=-7
dividing both sides with -7 we get
x=1
Hence we have x =1 there fore y = -4x
y=-4(1)
y=-4