horsegod556 horsegod556
  • 23-04-2020
  • Mathematics
contestada

The sum of 3 times a number and 9 equals 4 use the variable b for the unknown number write in an equation​

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charisburgess
charisburgess charisburgess
  • 23-04-2020

Answer: b= -5 over 3

Step-by-step explanation:

create the equation 3b + 9 = 4

subtract 9 from each side to isolate the variable

we are left with 3b = -5

to further isolate the variable divide by 3

3b/3 = -5/3

3b divided by 3 is b, which is equal to -5 divided by 3; -5/3

b = -5/3 is your answer

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