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Answer :

we have the equation

-2=6-2x

this is the equation of a vertical line

wee need two points to draw the line

so

For x=4

-2=6-2(4)

-2=6-8

-2=-2 -----> is true

that means

x=4 is a solution of the equation

graph the equation

x=4

see the attached figure

View image SerafinV104195

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