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# Can someone please break down "2u-3=2(4-u)-3" solving for u

I need a breakdown of how to solve for u. My mom and I have worked the problem and we've both gotten different answers. So i need someone to break down how they would sove it.

### 4 Answers by Expert Tutors

Jenifer M. | Experienced Special Education Teacher for Struggling ReadersExperienced Special Education Teacher fo...
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Remember "PEMDAS" for the order of operations.
First, parenthesis
second, exponents,
Third, multiply and divide.
Hope this helps.
4.9 4.9 (233 lesson ratings) (233)
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Good hearing from a fellow Virginian, Lee!

The "-3's" on both sides balance out ... 2u = 2(4-u) ... the "2's" balance out ... u= 4-u
... put minus elements "on the other side" ... u+u =4 ... sounds like 2+2 =4 ==> u=2
... Best wishes :)
Margaret S. | Elem, Middle and High School/ACT and ASVAB prep...3 Rs and BeyondElem, Middle and High School/ACT and ASV...
4.8 4.8 (102 lesson ratings) (102)
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My approach is just a little different:

REMEMBER YOUR GOAL IN ANY PROBLEM:  Get the variable alone on one side of the equal sign.

Step 1.  Do the math according to the order of operations:
(Think:  "Please Excuse My Dear Aunt Sally")

Parenthesis
Exponents
Multiplication
Division
Subtraction

Step 2.  Get U alone on one side of the equal sign by removing everything else from that side:
(Remember:  What you do to one side of the = sign, you must do to the other side as well, so you do not change the value)

Step 3.  Divide to Solve for U

1. Multiply:  2u - 3 = 2(4 - u) -3
2u - 3 = 8 - 2u - 3

2.  Add:  2u - 3 + 3 = 8 - 2u - 3 + 3
2u = 8 - 2u

Add:  2u + 2u = 8 - 2u + 2u
4u = 8

3:  Divide:  4u  = 8
4       4

u  = 2

Rusty P. | Math can be Fun, or at least toleratedMath can be Fun, or at least tolerated
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I need a breakdown of how to solve for u. My mom and I have worked the problem and we've both gotten different answers. So i need someone to break down how they would sove it.

### 2u-3=2(4-u)-3

First, distribute the 2 on the right side:

now it is

### 2u - 3 = 8 - 2u -3

Next, we can add 3 to each side. That leaves:

### 2u = 8 - 2u

Now, add 2u to each side:

## u = 2

Hope this helps, and vote for me.