HAPPY VALENTINES DAYYY
imma show work for each problem
1. 9c+1=10
-1 -1
----------------
9c=9
divide both sides by 9
c=1
2. 6y-5=7
+5 +5
-----------------
6y=12
divide 6 by both sides
y=2
3. 8=3a-4
+4 +4
_________
12=3a
divide 3 by both sides
4=a
4. m/5+9=11
-9 -9
--------------------
m/5=2
multiply 5 (denominator) by both sides)
m=10 cause 5s cancel out on left side
5. 13+7x=27
-13 -13
___________
7x=14
divide both sides by 7
x=2
6. 17-q=6
-17 -17
----------------
-q=-11
divide both sides by -1
q=11
7.) n-31/4=2
multiply 4 (denominator by both sides)
4's cancel out on left side
n-31=8
+31 +31
---------------
n=39
8. 1+2r=35
-1 -1
----------------
2r=34
divide 2 by both sides
r=17
9. 42+5t=8t
-5t -5t
-------------------
42=3t
divide 3 by both sides
14=t
10. 4p-3=17
+3 +3
------------------
4p=20
divide both sides by 4
p=5
hope this helps, if you have any questions just ask