Answer:
4x-11
Explanation:
you take 3x times 10 divided by your y line so your 10 goes up cause you divided your y your 10 turns into 11. then you times your 3x by 11 and it turn it to a 4 and x from your 3x comes down on 4 which makes it 4x
y + (3x+10) = 180
y+3x+10=180
y+3x=170
y=170-3x
I think this is the answer
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