Answer:
1. 385
2. 1,500
3. 726
4. x ≤ 3
5. x < 18
Explanation:
10x - 370 = 3480 (add 370 to both sides to get x on one side)
10x = 3850 (divide both sides by 10 to get x by itself)
x = 385
12x - 2000 = 16000 (add 2,000 to both sides to get x on one side)
12x = 18000 (divide both sides by 12 to get x by itself)
x = 1,500
6x + 378 = 4734 (subtract 378 from both sides to get x on one side)
6x = 4356 (divide both sides by 6 to get x by itself)
x = 726
-5x + 25 ≥ 10 (subtract 25 from both sides to get x on one side)
-5x ≥ -15 (divide both sides by -5 to get x by itself)
x ≤ 3 (we switch the sign because we divided by a negative number)
x - 8 < 10 (add 8 to both sides to get x on one side)
x < 18