inverse opporeation, 6x7 = 42 so N=42
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n would equal 2.5 because if 6n = 15 then you would divide 6 from both sides leaving n= 15/6 and then n=2.5 (^-^)
1.1667
Set it up this way: 8n + 7 = 2n Take 7 away from each side. 8n = 2n - 7 Take 2n away from each side 6n = -7 Divide each side by 6 n = -7/6 To check the answer, replace the n's with -7/6. 8 X -7/6 + 7 = 2 X -7/6 -56/6 + 42/6 = -14/6 -14/6 = -14/6
7 times 6 equals 42 :)
2n - 7 = - 1 add 7 to each side 2n - 7 + 7 = - 1 + 7 2n = 6 divide each sides integer by 2 (2/2)n = 6/2 n = 3 ---------------check in original equation 2(3) - 7 = - 1 6 - 7 = - 1 - 1 = - 1 ----------------checks and equation is satisfied