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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

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