9x+18+3x=1

Question

I want the correct answer so I can check my problem to see if I did it correct ??

Answer 1

9x + 18 + 3x = 1             combine like terms

12x + 18 = 1                   subtract 18 from both sides

12x = -17                        divided both sides by 12

x = -17/12   

 

Check:

 

9(-17/12) + 18 + 3(-17/12 = 1

12(-17/12) + 18 = 1

-17 + 18 = 1

Answer 2

9x + 18 + 3x = 1

 

First you simplify: 12x + 18 = 1

 

Then get x on a side by itself by subtracting 18 from both sides: 12x = -17

 

Finally, divide both sides by 12 to isolate x: x = -17/12