# How do you solve the system #x+y=6# and #x-y=2# by graphing?

##### 1 Answer

#### 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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