PLEASE HELP ME WITH ALGEBRA! (10 POINTS)

9. First subtract 4 from each side.
7a=-17-4
7a=-21
Then divide by 7 on each side
7a/7=a , -21/7= -3
a=-3

Do the same for steps 10-12. For #10 you should get s=11, for #11 x=-7, You can always plug your results back into the equation to check yourself, thats the beauty of it.

12. Once again you add 4 to each side
n/6=8
In this case, before you 100% sure know the value of n, you have to assume it is one. So divide by 1/6. n should equal 48. Same process with #13. You should get d=48.

the rest of the numbers follow the same steps as 10-12. Good luck :)

ok come down I'm 13 to so I understand now this is how you do number 9 you've got 7a+4= -17 ok well first you do 4 - 4 = 0 then you do -17 - 4 = -21 so now your problem looks like this 7a = -21 now you do 7a / 7 = a then you do -21 / 7 = -3 so your problem now looks like this a = -3 and you do the same thing for the other problems to I'm doing this same stuff so if you have any questions heres my email hyperpiper7@yahoo.com I hope this helps

9. 7a = -21 (subtract 4 from both sides)
a = -3 (divide both sides by 7)
10. -5s = -55 (add 13 to both sides)
s = 11
11. x = -7 (add x to both sides, then subtract 19 from both sides)
12. n/6 = 8 (add 4 to both sides)
n = 48 (multiply both sides by 6)
Hopefully you can figure out the rest!

P.S. Here is 17 just because of the decimals...
17. 3.4c = 8.5 (Add 1.7 to both sides)
c = 2.5

9. a=-21/7=-3! Answer; 10. s=55/5=11! Answer; 11. x=12-19=-7! Answer; 12. n=8[6]=48! Answer; 13. d=[21-6][3.2]=48! Answer; 14. p=2[-27+7]=-40! Answer; 15. t=-26/14=-8/7! Answer; 16. 3-5[4m]=16[4m], m=3/84=1/28! Answer; 17. c=[6.8+1.7]/3.4=8.5/3.4=2.5! Answer

This is super easy!!!
9. 7a-4=-17
+4=+4
7a=-13
a=-13/7
haha i wrote the problem wrong but the others are right

Myalgebra.com