(A.) 8
(B) 7
(C) 6
(D) 5
(E) 4
4x = 16 {added 2 to each side}
x = 4 {divided each side by 4}
2x  1
= 2(4)  1 {substituted 4 in for x}
= 8  1 {multiplied}
= 7 {subtracted}
D.) 7
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