How do you solve the system #x+y=6# and #x-y=2# by graphing?
1 Answer
The common point ( point of intersection) is:
Explanation:
Simultaneous equations are such that (normally) they plot a range of value that are different to each other. That is, until they cross . At that instant the both have the same values for
Write as:
Divide both sides by 2
Thus
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Substitute
Subtract 4 from both sides
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