Answer :

The value of x is 7 and the lengths of the sides are 16, 11 and 8

How to determine the values of x and each side?

The complete question is added as an attachment

The perimeter is calculated as:

P = 3x - 5 + 2x-3 + 15 - x

Evaluate

P = 4x + 7

The perimeter is 35.

So, we have

4x + 7 = 35

This gives

4x = 28

Divide by 4

x = 7

Substitute x = 7 in 3x - 5, 2x-3 and 15 - x

3x - 5 = 3* 7 - 5 =16

2x-3 = 2* 7 - 3 =  11

15 - x= 15 - 7 = 8

Hence, the value of x is 7 and the lengths of the sides are 16, 11 and 8


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