(3z/7-1/2/z-1/4)-3/14=1/7
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3/7z-1/2/z+1/4+3/14=1/7 ... 3 1 1 3 1 ((((—•z)-— ÷ z)+—)+——)-— = 0 7 2 4 14 7 ..... 4z • (3z-2) Add up the last 2 terms, pulling out common factors : 7 • (3z-2)
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