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Which equation shows the substitution method being used to solve the system of linear equations?
x + y = 6
x = y + 2
(Points : 3)
x + y = y + 2
x + (y + 2) = 6
x = (x – 6) + 2
(y + 2) + y = 6
Substitute [tex]x[/tex] in the first equation with [tex]y+2[/tex] from the other equation. Then you have [tex]y+2+y=6 \Leftrightarrow \boxed{(y+2)+y=6}[/tex]
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