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(2*x)/7+2 = 9/5 // - 9/5
(2*x)/7-(9/5)+2 = 0
(2*x)/7-9/5+2 = 0
2/7*x+1/5 = 0 // - 1/5
2/7*x = -1/5 // : 2/7
x = -1/5/2/7
x = -7/10
x = -7/10
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