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Answered

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What’s the answer to this ???

Whats The Answer To This class=

Sagot :

Answer:

-5, 3

Step-by-step explanation:

3) 10+3n=20+5n Set up the problem

        -3n       -3n Subtract 3n from both sides to get n on one side of the equation.

    10     =20-2n

    -20     -20 Subtract 20 from both sides to isolate n

     -10    =2n

      /2       /2 Divide both sides by 2 to isolate n

      -5    =   n

4) 18=2(b+6) Write down problem

   18=2b+12 Distribute

    -12     -12 Subtract 12 from both sides to isolate b

    6=2b

     /2/2 Divide both sides by 2 to isolate b

     3=b

Answer:

3) 3x+10 = 5x+20

=> 3x-5x= 20-10

=> -2x= 10

=> x = 10/-2

=> x= -5

4) 2(b+6) = 18

=> 2b +12 = 18

=> 2b = 18-12

=> b= 6/2

=> b = 3

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