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help pls i have no clue how to do this

Help Pls I Have No Clue How To Do This class=

Sagot :

Solve the system of equations.
3x-y=2
x+3y=19
Find x from the second one x=19-3y
Plug it in the first one 3(19-3y)-y=2
57-9y-y=2
55=10y
Y=5.5
Now find x:
x=19-3*5.5=2.5
So, the coordinates of p is (2.5,5.5), since this is the point that is on both lines.