If 'n' is 8, then (2n - 7) is 9 .
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2n + 19 = -7 2n = -7 - 19 2n = -26 n= -13
7-2n=n-147-2n+2n=n-14+2n7=3n-147+14=3n21=3n21/3=3n/37=n
2(4) = 8
if you mean 2n=8, then N=4, which translate to 2x4=8
-7 = 2n + 19 Subtract 19 from both side -26 = 2n Divide by 2 on both sides n = -13