39.3k views
4 votes
(m-2)-5=8-2(m-4) how do you solve this?

(m-2)-5=8-2(m-4) how do you solve this?-example-1

2 Answers

4 votes

(m - 2) - 5 = 8 - 2(m - 4)

The objective is to isolate m (get m by itself). By PEMDAS, the first step is to get rid of the parentheses. Apply the distributive property - a(b + c) = ab + ac.

(m - 2) - 5 = 8 - 2(m - 4)

m - 2 - 5 = 8 - 2m + 8

Combine like terms (constants) on both sides.

m - 2 - 5 = 8 - 2m + 8

m - 7 = 16 - 2m

Add 7 to both sides to get rid of the constant on the left side of the equation.

m - 7 = 16 - 2m

m = 23 - 2m

Add 2m to both sides to get rid of the variable term on the right side of the equation.

3m = 23

Divide both sides by 3 to isolate m.

3m = 23

m =
7(2)/(3)

Answer:

m =
7(2)/(3)

User SaguiItay
by
7.8k points
3 votes

First, simplify both sides:

(m - 2) - 5 = m - 7

8 - 2 * (m - 4j = 8 - 2m + 8 = 16 - 2m

So,

m - 7 = 16 - 2m

Now, add 2m to both sides:

3m - 7 = 16

Then add 7 to both sides:

3m = 23

Divide both sides by 3:

m = 23/3

User Mohammad Hassany
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories