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Answer :

Answer:

ax+dx=c+e

Step-by-step explanation:

Answer:

SP=7

Step-by-step explanation:

As we know that

1/2 LN=SP

10x-6=2(3x+1)

10x-6=6x+2

4x=8

x=2

SP=3*2+1=7

The answer is 7.

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