5(4n-2)+8(2n-1)=20n-10+16n-8=36n-18
n = -3
36*(-3) - 18 = -108 - 18 = -126
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5(4n-2)+8(2n-1)=20n-10+16n-8=36n-18
n = -3
36*(-3) - 18 = -108 - 18 = -126