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Mathematics 21 Online
OpenStudy (anonymous):

2x-9=2(x+11)-3

OpenStudy (anonymous):

2x-9=2(x+11)-3 Distribute 2 2x-9=2x+22-3 2x-9=2x+19 2x-9=2x+19 Subtract 2x on both sides, so you can bring 2x to the right side -2x -2x -9=+19 The 2x cancels out, ones negative and one positive -9=+19 Bring 9 to the right side, so you do the opposite operation +9 +9 28

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