SOLUTION: 5b+7+2b=23

Algebra ->  Equations -> SOLUTION: 5b+7+2b=23       Log On


   



Question 578562: 5b+7+2b=23

Found 2 solutions by jim_thompson5910, sharksteal:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
5b%2B7%2B2b=23 Start with the given equation.


7b%2B7=23 Combine like terms on the left side.


7b=23-7 Subtract 7 from both sides.


7b=16 Combine like terms on the right side.


b=%2816%29%2F%287%29 Divide both sides by 7 to isolate b.


----------------------------------------------------------------------

Answer:

So the solution is b=16%2F7

Answer by sharksteal(2) About Me  (Show Source):
You can put this solution on YOUR website!
5b+7+2b=23
combine like terms first: 5b+2b=7b
what it should look like: 7b+7=23
now subtract 7 from 23 since you add it to help find b: 7b+7-7=23-7
what it should look like: 7b=16
now divide 16 by 7 to find b: 7b/7=16/7
b=2 2/7
or
16 over 7
check: plug in b to solve-
5(2 2/7)+7+2(2 2/7)=23
80 over 7+7+32 over 7= 23
23=23 :D
ps (when i use / it means over)