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2x + 3 = 9
2x + 3 - 3 = 9 - 3 (subtract 3 from both sides)
2x = 6 (do the arithmetic)
2x/2 = 6/2 (divide both sides by 2)
x = 3 (do the arithmetic)
Check
2(3) + 3 = 9
6 + 3 = 9 (yes)
2x + 3 - 3 = 9 - 3 (subtract 3 from both sides)
2x = 6 (do the arithmetic)
2x/2 = 6/2 (divide both sides by 2)
x = 3 (do the arithmetic)
Check
2(3) + 3 = 9
6 + 3 = 9 (yes)
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