5(x-4)-3x+5=-3x+15 this is math idk how to do this help

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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5(x-4)-3x+5=-3x+15 this is math idk how to do this help

Expert Solution
Step 1

Given:

The equation is 5x-4-3x+5=-3x+15.

Step 2

Calculation:

Obtain the solution of the equation as follows.

5x-4-3x+5=-3x+15

Add 3x on both sides of the equation

5x-4-3x+5+3x=-3x+15+3x

Simplify as follows

5x-4+5=15

Subtract 5 from both sides

5x-4+5-5=15-5

Simplify as follows

5x-4=10

Divide both sides by 5

5x-45=105

Simplify as follows

x-4=2

Add 4 on both sides of the equation.

x-4+4=2+4x=6

 

x=6

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