Substitute.
2x+(2x -15) = -3
4x -15 = -3
Add 15 to both sides
4x = 12
Divide by 4
X=3
2(3) + y = -3
6+y=-3
-6 from both sides
Y=-9
(3,-9)
The pentagon is the one with 5 sides. Good Luck!
Answer:
I don't think you typed the full problem, but the answer is either that you do the parenthesis first, or that it adds to 10
Step-by-step explanation:
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