Answer:
1. x = 21
2. x = 10
3. x = 12
4. m = -42
5. sorry not know the answer i can't solve
6. x = -11/2 or x = -5 1/2
7. sorry not know the answer i can't solve
8. sorry not know the answer i can't solve
Step-by-step explanation:
HOPE IT'S HELP SORRY FOR THE OTHER NUMBER THAT HAVE NO ANSWER