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14-(2*(1/28)*x) = 7-((1/28)*x) // - 7-((1/28)*x)
(1/28)*x-(2*(1/28)*x)-7+14 = 0
(-1/14)*x+(1/28)*x-7+14 = 0
7-1/28*x = 0 // - 7
-1/28*x = -7 // : -1/28
x = -7/(-1/28)
x = 196
x = 196
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