(4x-5)+(4x+1)+(x+7)=180

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1 Answer

 

(4x - 5) + (4x + 1) + (x + 7) = 180
4x - 5 + 4x + 1 + x + 7 = 180
9x + 3 = 180
9x = 177
x = 19 and 2/3

 

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