Homework Help: Algebra

Posted by aria on Thursday, June 9, 2011 at 5:11pm.

I need help with these two problems. I need to have all of the steps shown for full credit and I get lost along the way.

6x - 2y = 10
4x + 3y = 12
solve the system by elimination.

solve inequality
-2(2x-6)-4x>or equal to 3x-10 + 9

It's at this point in our lessons I keep losing my previous knowledge. I think I need time to let the previous knowledge sink in before moving on. However, that isn't acceptable.
Thanks for your help.

Algebra - PsyDAG, Friday, June 10, 2011 at 3:46pm
Multiply the top equation by 3 and the bottom equation by 2. Then add the two equations. This will elimination the y term.

-2(2x-6)-4x ≥ 3x-10 + 9

-4x+12-4x ≥ 3x-10 + 9

Combine like terms. It works just like an equation, except that multiplying/dividing by a negative value reverses the carat (e.g., > ot <).

Answer this Question

Related Questions

english - My fiancé does not think he needs a credit card right now. We ...
Algebra - I need help! Fin the inverse of the function, How do I work the below ...
Geometry - I don't know if this is the place to put it but anyways Complete ...
Comm 155 - I need help identifying the adverbs and adjectives. I am not sure ...
finance (sales on credit) - In general, the larger the portion of a firm's ...
Math - Solve for x: 5/x+6+2/x^2+7x+6=3/x+1 5/x+5+2/(x+6)(x+1)=3/x+1 5(x+6)(x+1)/...
math - how do u divide fractions? i really need help with this. i need to know ...
Algebra - need help in solving by substitution. We all have different steps and ...
math - f(x) = 4e^-1x +13x +5 at (0,9) 1. All steps for finding the first ...
Algebra 2 - Solve e^(2x-1)=3 I need all of the steps. I need this ASAP because ...

For Further Reading

First Name:
School Subject:
Answer: