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m in (-oo:+oo)
2*(3*m+10) = 38 // - 38
2*(3*m+10)-38 = 0
2*(3*m+10)-38 = 0
6*m-18 = 0
6*m-18 = 0
6*m-18 = 0 // + 18
6*m = 18 // : 6
m = 18/6
m = 3
m = 3
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