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PLEASE HELP. ILL MARK BRAINLIEST
solve and graph |x + 2x| < 9

#13 in the picture and i need the answer in graph form or at least explained with words like the picture PLEASEEE

PLEASE HELP ILL MARK BRAINLIEST solve and graph x 2x lt 9 13 in the picture and i need the answer in graph form or at least explained with words like the pictur class=