Answer:
1) x=5; 2) x=3; 3) x=2; 4) x=10; 5) x=7; 6) x=36; 7) x=110; 8) x=100; 9) x=40; 10) x=8; 11) x=30; 12) x=12; 13) x=12; 14) x=63; 15) x=77; 16) x=5
Explanation:
I can't explain every problem, but I will do the first three.
1) We divide the sides by 4 to get x=5
2)We divide by 3 to get x=3
3)Divide by 4 to get x=2