Sunday

January 25, 2015

January 25, 2015

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.

**Answer this Question**

**Related Questions**

Math - We have an important chemsitry test due and I want to make sure that I do...

English - 1. He can not solve the math problem. 2. He cannot solve the math ...

MATH PLEASEEEEE - I have a question, if f(x)=x/2 and g(x)=3x+1 find: a) (f+g)(x...

math - actually, in a addition to the question i posted a few minutes ago, can ...

Math - Solve by eliminnation methods 2x-4y=5 2x-4y=6 solve the system by ...

MATH PLEASE HELP! - Solve each system 3x+2y= -2 9x- y= -6 I know how to solve ...

Math - Solve for S: r^2s-5s=7. Solve for b: L= 4a^2b. I'm confused about how to ...

math - solve for the indicated variable: a. temperature formula solve for F: K=5...

math - Solve systems by substitution 5x - 2y = -5 y - 5x = 3 Substitute 5x + 3 ...

Math Analysis - 6. Prove that f(x) = (3/4)x^4 + 2 and g(x) = (4sqrt(108x-216))/3...