Answered

Get the answers you've been looking for with the help of IDNLearn.com's expert community. Our platform offers detailed and accurate responses from experts, helping you navigate any topic with confidence.

the question says evaluate 2a-b/b when a=4 and b=-3.
How would I start this problem?

Sagot :

AL2006idn
You would start by writing down the expression that you have to evaluate:

2a - b/b

Then, get to work:
-- Wherever you see 'a', put in 4 .
-- Wherever you see 'b', put in -3 .

2(4) - (-3/-3)

Can you handle that ?

Hint:
The thing on the right is a fraction with the same number on top and bottom.
Any fraction like that is always equal to ' 1 '.
[tex]\frac{2a-b}{b}\\\\substitute\ a=4;\ b=-3:\\\\\frac{2\cdot4-(-3)}{-3}=\frac{8+3}{-3}=-\frac{11}{3}=-3\frac{2}{3}[/tex]

[tex]or\ if\ 2a+\frac{b}{b}=2a+1\ then\ for\ a=4\ and\ b=-3:\\\\2\cdot4-3=8-3=5[/tex]
Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Your search for answers ends at IDNLearn.com. Thanks for visiting, and we look forward to helping you again soon.