Answer:
Step-by-step explanation:
Solution by substitution method
-2x+y=10
2x-y=-10
and 4x-y=-14
Suppose,
2x-y=-10→(1)
and 4x-y=-14→(2)
Taking equation (1), we have
2x-y=-10
⇒y=2x+10→(3)
Putting y=2x+10 in equation (2), we get
4x-y=-14
4x-1(2x+10)=-14
⇒4x-2x-10=-14
⇒2x-10=-14
⇒2x=-14+10
⇒2x=-4
⇒x=-2→(4)
Now, Putting x=-2 in equation (3), we get
y=2x+10
⇒y=2(-2)+10
⇒y=-4+10
⇒y=6
∴y=6andx=-2
