Posted by **Tasha** on Monday, March 2, 2009 at 7:28pm.

40=-0.2x+45

i cant seem to solve this problem.

- Algebra -
**Chopsticks**, Monday, March 2, 2009 at 7:34pm
40=-0.2x+45

Subtract 45 to both sides

-5=-0.2x

now divide -0.2 to both sides

-5/-0.2=x

A negative divdes by a negative gives you a positive

5/0.2=x

You can leave that like that or find the decimal form of it.

- Algebra -
**Ms. Sue**, Monday, March 2, 2009 at 7:35pm
40=-0.2x+45

0.2x = 45 - 40

0.2x = 5

x = 5/0.2

x = 25

Checking:

40 = -0.2x + 45

40 = -0.2 (25) + 45

40 = -5 + 45

- Algebra -
**Tasha**, Monday, March 2, 2009 at 7:37pm
Thank you sooo much!

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