Posted by **Jazzy** on Monday, February 13, 2012 at 6:54pm.

Combine like terms.

12.) 7r4 + 13r2 + 9r

13.) 3 - 4x - 15x - 6x - 1

Thanks to whoever helps me :D

- math -
**Reiny**, Monday, February 13, 2012 at 7:10pm
in 12.) , if your mean 7x^4 etc, then all 3 terms would be different and nothing else can be done

13.)

3-4x - 15x - 6x - 1

= 2 - 24x , just add up the x terms and the constants.

- math -
**Jazzy**, Monday, February 13, 2012 at 7:11pm
Thank you so much Reiny :D

## Answer this Question

## Related Questions

- math - when you are multiplying an equation how do you find like terms The ones ...
- Alegbra - combine like terms -9x - 13x + 7 easy problem My professor says I ...
- Math - I have the following problem to solve and I am not sure if I have the ...
- math - 8(x+2)-4x +7 I need help! multiply the parenthsis 8x + 16-4x +7 then ...
- Algebra 1 - simplify 2/x^2-y^2-1/x^2-3xy+2y^2-3/x^2-xy-2y^2 group like terms, ...
- Algebra - I need help trying to put the correct vocabulary words when solving ...
- Math - help me combine like terms. like how do you do it with different signs in...
- Math - Okay, this isn't really a big question. I know how to do it, there's just...
- Math - Combine like terms a + a/4 + 3a/4 + 2a
- Math - How do you combine like terms?