x = 10
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60 - 20 = 20 + 20=============
a + b + c = 180 b = 3a c = 5a Substituting the values of b and c into the first equation. a + 3a + 5a = 180 or 9a = 180 so that a = 20 then b = 3a = 3*20 = 60 and c = 5a = 5*20 = 100
-2x+14=20 -2x=20-14 -2x=6 -2x/-2=6/-2 x=-3
4507 5267 - 500 - 200 - 60 = 4507
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