Mathematics, 18.12.2020 20:00 amandanunnery33

(4x + 2y + 6) + (7x + 3y - 4) + (x - 2y + 1) Can someone break this down step by step so i know how to do it please
thankyou .

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(4x + 2y + 6) + (7x + 3y - 4) + (x - 2y + 1) Can someone break this down step by step so i know how...