9x+7/2-(x-x-2/7)=36
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Step-by-step explanation:
9x+7/2-x+x+2/7=36
9x-x+7/2+x+2/7=36
8x+x+7/2+2/7=36
9x+2/7=36-7/2
9x+2/7=72/2-7/2
9x+2/7=65/2
9x=65/2 - 2/7
9x=455/14 - 4/14
9x=441/14
x=441/14 x 1/9
x=441/126
x=7/2 or 3.5
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=9
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