Hello.
x=3, y=4
x=-2, y=9
Set x equal to anything, then isolate y to get the other number.
Have a nice day
Answer:
comparing both equation we get,
2X+1=X+9
or, X=8
Y=X+9
or, Y=17
therefore the required solution is (8,17)
[ Answer ]

[ Explanation ]
- Formula For Area Of Trapezoid:

-----------------------------------------
A = 10
B = 18
H = 6
- Plug Numbers Into Equation:

10 + 18 = 28
28 ÷ 2 = 14
14 · 6 = 84
84
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I’m not sure I understand your question