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what is 3x 3y=21 y=-x 7 Im not sure how to solve this problem

Open Posted By: christeena Date: 14/01/2021 Academic Level: High School Paper Type: Dissertation & Thesis Writing

Question Description

what is 3x+3y=21 if y=-x+7

Category: Engineering & Sciences Subjects: Chemistry Deadline: 24 Hours Budget: $60 - $90 Pages: 2-3 Pages (Short Assignment)