Wednesday

April 16, 2014

April 16, 2014

Posted by **Kris** on Sunday, January 24, 2010 at 7:38pm.

Solve:

1. 3x + 15 = 0

2. 6x + 18 =0

thanks!

- math -
**Ms. Sue**, Sunday, January 24, 2010 at 7:43pmI'll do the first one.

3x + 15 = 0

3x = -15

x = -5

I'll be glad to check your work for the second problem.

- math -
**Kris**, Sunday, January 24, 2010 at 8:16pm2. 6x + 18 =0

6x/6 = 18/6

x = 3??

- math -
**Anna**, Sunday, January 24, 2010 at 8:19pmx = -3

You're on the right track, Good job!

- math -
**Ms. Sue**, Sunday, January 24, 2010 at 8:20pmAlmost right.

But you forgot to subtract 18 from the right side of the equation.

6x + 18 =0

6x/6 = -18/6

x = -3

To check it, substitute -3 for x.

6(-3) + 18 = 0

-18 + 18 = 0

That's it!

- math -
**Kris**, Sunday, January 24, 2010 at 8:31pmthank you

- math -
**Ms. Sue**, Sunday, January 24, 2010 at 8:34pmYou're welcome.

**Related Questions**

math,algebra,help - Directions are simplify by combining like terms. x radiacal ...

math - 3x-4=-2(3x+5) 3x-4=-2(3x+5) clear the fraction. 3x-4=-6x-10 add+6x+4 to ...

Math - Can you factor these for me? 12x^3 + 6x^2 - 3x - 2 2x^2 +x - 6 25 - 4(x^2...

math(is this how you work this) - solve the equation 15-4x=2(3x+1) 15-4x=6x+1 -...

Math- Adv. Alg. w/ Trig. - I need help simplifying this expression: (3x^3y^5 + ...

algebra - can somebody help me out? am I doing this right? using the elimination...

Math - Can someone please check my answers below for accurateness? The ...

Algebra - checking problem Use FOIL to multiply: (6x – 1)(3x – 4) 6x*3x + 6x*(-4...

math, algebra - can someone correct this for me or help me. 6x^2y^3+ 9x^2y^3 ...

math - simplify (x^2-3x+6)-(36x^2-18x+6/6) (x^2-3x+6)-(6(6x^2-3x+1/6) cancel the...