14 + 2d = 5 * (7 - d)

Question

14 + 2d = 5 * (7 - d)

Answer 1

14+2d=35-5d 2d+5d=35-14 7d=21 D=3

Answer 2

D=3
5*7=35
5d=5d
2d+5d=35-14
35-14=21
7d=21
d=3