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Assignment: Solve the following equations.
1. 12-2n=4n
2. 5y-9=13
3. 1/2x+3=18
4. 2y+6=15+y
5. 7n=15+2n


paki sagot po brainlest ko po Tama sagot salamat po ​


Sagot :

Answer:

1. n=2

2. y=22/5

3. x=1/30

4. y=9

5. n=3

Step-by-step explanation:

1. 12-2n=4n

-2n-4n= -12

-6n= -12

n= -12/-6

n=2

2. 5y-9=13

5y= 13+9

5y=22

y=22/5

3. 1/2x + 3=13

2x/2x + 3×2x=18×2x

1+3×2x=18×2x

1+6x=36x

-30x= -1

x= -1/-30 ----- Determine the sign

x=1/30

4. 2y+6=15+y

2y-y=15-6

y=15-6

y=9

5. 7n=15+2n

7n=2n=15

5n=15

n=3

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