You are here:

Algebra/PREALGEBRA

Advertisement

Expert: - 10/12/2010


Question
M+2M+1=7 HOW DO I SOLVE


Answer
Note that M + 2M is really 1M + 2M.
This means our equation is really 1M + 2M + 1 = 7.

Factoring the M out on the left side gives (1+2)M + 1 = 7,
so the problem is 3M + 1 = 7.

Subtract 1 from both sides, so we have 3M + 1 - 1 = 7 - 1.
Now 1 - 1 = 0 and 7 - 1 = 6, so this is 3M = 6.

The last thing to do is to divide both sides by 3, so M = 6/3.
Since 6 = 3 + 3, it can be seen that 3 goes into 6 twice.

Algebra

All Answers

Answers by Expert:

Ask Experts

Volunteer

Scott A Wilson

Expertise

Any algebraic question you've got, like linear, quadratic, exponential, etc.

Experience

solving story problems solving linear, parabolic, and 3rd order equations solving equations with multiple variables

Publications
documents at Boeing

Education/Credentials
MS at math OSU in mathematics at OSU BS at OSU in mathematical sciences (math, statistics, computer science)

Awards and Honors
both BS and MS degrees were given with honors

Past/Present Clients
students from all over since the 80's; over 1,000 in algebra

©2012 About.com, a part of The New York Times Company. All rights reserved.