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hodyreva [135]
3 years ago
6

Just number three please.

Mathematics
1 answer:
nevsk [136]3 years ago
7 0
All of the angles are 60 degrees because it is a equallaterial triangle. 
4x+5=10x+3
6x=2
x=1/3

4x+5
4(1/3)+5
4/3+5
=6 1/3
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