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Anonymous
x = 50
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If: x+9+5x = 21+2x Then: x = 3
5x + x - 6x + 2x = 2x
5x+2=x+10 5x-x=10-2 4x=8 x=2
9.2x+5x=35
3 + 5x = 38 -> 5x = 35 -> x = 7