Answer:
i'm not sure but if you get a calculator and add the percentages up you will probably get the answer
Step-by-step explanation:
get calculator, use calculator
Let y = the length of the 3rd side
x+3 + 2x+4 + y = 6x
x + 2x + 3 + 4 + y = 6x
3x + 7 +y = 6x
7 + y = 3x
y = 3x - 7
The length of the third side in terms of x is 3x-7
Answer:

Step-by-step explanation:
We have the following equations:


If we want to add these equations, we just need to add x-terms, y-terms and independent terms.


I hope it helps you!
Answer:
5
Step-by-step explanation: