3x+y=6
3x-y=6
Cancel out the Y and add the terms
6x=12
X=2
Plug 2 into one of the original equations to find Y
3(6)+y=6
18+y=6
Y=-12
Write as ordered pair: (6,-12)
The 2 possible ways to fence in the patio are having 8x9, with the nine being the length of the wall. Because 8+8+9=26. The second way is 18x4 and the 18 being the length of the wall. Because 18+4+4=26.
Answer:
-3x-8=16
-3x = 16+8
-3x = 24
x = 24/-3
x = -8
= -2(x-7)
= -2(-8-7)
= 30
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