(877) 999-2681  | BECOME A TUTOR | BECOME A STUDENT  |  Sign In
Search 70,055 tutors SEARCH
WyzAnt Tutoring Tutor Tutor United States

## Seasoned and Passionate about Teaching

### Grosse Pointe, MI (48236)

 Travel Radius 10 miles Hourly Fee \$40.00 Discount \$34.00 - \$38.00 Save up to 15%
 Your first hour with any tutor is always 100% refundable!

# Cheryl's Responses in WyzAnt Answers

#### when you subtract a variable from a whole number and a variable:example x+23=2x+45 why does the 2x become 0?

I need to understand the rules of basic algebra. I understand the answer, I need to understand why it is the answer. x+23=2x+45

x-x+23=2x-x+45

23=x+45. why does the 2x become just x ? why is the answer not just 2?

+ more- less
Asked by Kelvin from Macomb, MI
01

Well..., the goal is to get the x's (variables) on one side and the numbers on the other.  So by subtracting 2x from both sides (we must always keep things equal and exact in mathematics- that is why you subtract from both sides of the equation) there are no more x's left on the one side.  So really the x's are not 0.

x + 23 = 2x + 45

-x + 23 = 45

-x = 22

x = -22

#### why cant you divide by zero, wont it just be zero?

my teacher asked this but i dont know why you cant divide by zero

+ more- less
35

You cannot divide by 0 because there is nothing to divide. Zero is nothing.  Think logically - if there are 12 pieces in a Hershey bar and you are divying it up between six kids, then each will have 2 pieces.  Thereby leaving nothing (0) left should another kid come and want some.

## Other Grosse Pointe, MI Tutors

### Cheryl's Hourly Rate

Hourly Fee: \$40.00

Save up to 15% with a discount package

Cancellation: 24 hours notice required

#### How do I receive a discount?

Save between 5 and 15% on tutoring by purchasing credit with one of our prepaid discount packages. You can buy one of our standard 5, 10 or 15% packages or customize your own package based on how much tutoring you need. The credit you purchase can be used towards any tutor at any time and does not expire. If you do not use the entire package, we will simply deduct what you did spend on tutoring from your original purchase price and give you a refund. Discount packages start as low as \$190.

Credit For Only You Save
\$200 - \$399 \$190 - \$379 5%
\$400 - \$999 \$360 - \$899 10%
\$1,000 + \$850 + 15%

Your first hour with any tutor is protected by our Good Fit Guarantee: You don't pay for tutoring unless you find a good fit!

## Background Check Status for Cheryl M.

Cheryl has consented to a background check to be run by Lexis Nexis upon request for \$7.99. You will be able to run a background check after you email Cheryl with your tutoring inquiry.