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Please help i really don’t understand ( ignore the math on top )

Please help i really don’t understand ( ignore the math on top )-example-1
User Sally
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3.1k points

1 Answer

4 votes

Answer: x=2 DS=10 SE=10 DE=20

Explanation:


7x-4=16-3x\\7x-4+3x=16-3x+3x\\10x-6=16\\10x-4+4=16+4\\10x=20\\

Divide the equation by 10:


x=2

Hence,


DS=(7)(2)-4\\DS=14-4\\DS=SE=10\\DE=DS+SE\\DE=10+10\\DE=20

User Dubs
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