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7-(x/3) = 2*x-(7/5) // - 2*x-(7/5)
7/5-(x/3)-(2*x)+7 = 0
7/5-(x/3)-2*x+7 = 0
42/5-7/3*x = 0 // - 42/5
-7/3*x = -42/5 // : -7/3
x = -42/5/(-7/3)
x = 18/5
x = 18/5
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