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Mathematics 8 Online
OpenStudy (anonymous):

The point (-1,7) is a solution of y = -3x+4 and x + y = 7. Is This TRUE or FALSE?

myininaya (myininaya):

So when you replace x with -1 and y with 7 in the equation y=-3x+4 Are both sides equal?

myininaya (myininaya):

(We will also have to check this for x+y=7) If both check out then yes (-1,7) is a solution to the set of equations

OpenStudy (anonymous):

So its Would Be TRUE?

myininaya (myininaya):

Let me ask you a question Is the following a true statement -1+7=7

OpenStudy (anonymous):

yes

myininaya (myininaya):

Are you sure that -1+7 is 7?

OpenStudy (anonymous):

oops no it would be false

myininaya (myininaya):

lol right the answer is false :)

OpenStudy (anonymous):

lol thanxs alot

myininaya (myininaya):

since the order pair did not satisfy both equations

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