Tri Side

a tri angle has two sides of equal length the third side is 30 meters shortesrthan twice the lenght of each?

congruent side.the perimeter is 570 meters find the lenth of each side
i think the equations is 2x+[2x-30]=570

That’s correct. You can get rid of the brackets and solve from there:

2x + 2x – 30 = 570

4x = 600

x = 150.

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