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lions [1.4K]
3 years ago
14

Help fast please and good night also happy Valentine's day​

Mathematics
2 answers:
Mashcka [7]3 years ago
4 0
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
-Dominant- [34]3 years ago
3 0

Answer:

#1 c=1

#2 y=2

#3 a=4

#4 m=10

#5 x=2

#6 q=11

#7 n=27

#8 r=17

#9 1st t=6 2nd t=9

#10 p=5

Did that help???

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Given

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10-19.99                                                   7

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X = 3
y = -1 

get the x or y by itself first (second eq. is easier)
So, x + 2y = 1
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Now we get: 
x = -2y +1 Plug it into the other equation.

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