Solve the following system of equations for x
2x-y=4
y-x=4
2 answers:
Answer:
x = 8
y = 12
Step-by-step explanation:
Given equations are -
2x - y = 4 .......(1)
-x + y = 4 ........(2)
Add both equations, we get
2x - y + (-x + y) = 4 + 4
⇒2x - y - x + y = 8
⇒x = 8
Now,
Put the value of x in equation (2), we get
y - 8 = 4
⇒y = 4 + 8
⇒y = 12
∴ we get
x = 8
y = 12
Answer:
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