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

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