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Anonymous
x = 4
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5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
5x * 18 = 201. /185x=1.111111112. /5x=0.2222222222
minus 4 plus 9 = 5, so 5x
well. 5x=20 u divide by 5 on both side so x=4