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x in (-oo:+oo)
x+x+98 = 9/5 // - 9/5
x+x-(9/5)+98 = 0
x+x-9/5+98 = 0
2*x+481/5 = 0 // - 481/5
2*x = -481/5 // : 2
x = -481/5/2
x = -481/10
x = -481/10
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