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m in (-oo:+oo)
35 = 6*m+2*m+3 // - 6*m+2*m+3
35-(6*m)-(2*m)-3 = 0
35-6*m-2*m-3 = 0
32-8*m = 0 // - 32
-8*m = -32 // : -8
m = -32/(-8)
m = 4
m = 4
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