-3(m- 2n) = 5m please show the steps

Algebra
Tutor: None Selected Time limit: 1 Day

solve for m

Oct 3rd, 2015

Hello!

First, open parenthesis (distributive property):

(-3)*m - (-3)*(2n) = 5m, or
-3m + 6n = 5m   (associative property for multiplication).

Then, add 3m to the both sides:

3m - 3m + 6n = 3m + 5m, or
6n = 8m.

Finally, divide both sides by 8 and obtain

m = 6n/8 = 3n/4.

Or m = (3/4)n.

Please ask if something is unclear.
Sep 18th, 2015

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