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Solve using substitution

X+y=9
Y=2x-6

Show work plz


Sagot :

answer: point form • (5,4)
equation form • x=5, y=4

3x-6=9
y=2x-6

x=5
y=2x-6. plug in 5 for x. 2(5)=10.

y=10-6
y=4