Question

Please help me, thanks!

Answer 1

This exercise is asking you to find the value of b or solve for b, to do so you have to isolate or leave b alone by doing different mathematical operations according to the given equation.

The given equation is 12b+b-4b+3=12, which is a three step equation meaning that in order to solve for b you have to perform three different mathematical operations, in this case combining of like terms, subtraction, and division.

12b+b-4b+3=12              Combine like terms
            9b+3=12              Subtract 3 in both sides
                9b=9                Divide by 9 in both sides to isolate b
                  b=1

The value of ''b'' by which this equation is true is 1.

Answer 2

STEPS:

1. Add and subtract the same variables
2. Subtract 3 from 12
3. Divide whatever you got from 12-3 by your answer from step 1 (12-3 / b)
4. b = ?

Hope this helps! Please ask questions if you have any.