Answer:
1) n + 7 = 20
2) x + 7 = 14
3) x + n = 21
4) 11 +n = 19
5) x - 17 = 14
6) 12 - x = 8
7) x - 4 = 30
8) 8x = 56
9) 1/2n = 18
10) 2(n > 4) = 12
11) 4n = 12
12) n + 2 = 14
13) n - 10 = 4
14) n - 2 = 8
15) n - 2 = 9
16) 2n - 3 = 17
17) 2n - 10 = 22
18) 3n - 6 = 13
19) 2n - 9 = 7
20) 2(n < 3) = 13
Step-by-step explanation:
I'm not entirely sure about numbers 10 and 20..
