The answer to 5x+20=-5x

Question

5x+20=-5x

 

Answer 1

5x + 20 = -5x

 

Add 5x to both sides:

 

10x + 20 = 0

 

Subtract 20 from both sides:

 

10x = -20

 

Divide both sides by 10:

 

x = -2

 

Check:

5x + 20 = -5x

5(-2) + 10 = -5(-2)

-10 + 20 = 10

10 = 10

Check!

Answer 2

What we need to do is isolate the variable:

5x + 20 = -5x

 

Subtract 5x from both sides:

20 = -10x

 

Then we divide both sides by -10:

-2 = x

 

Check it!

5 * -2 + 20 = -5 * -2

-10 + 20 = 10

10 = 10