Monday

December 22, 2014

December 22, 2014

Posted by **struggling** on Saturday, May 26, 2007 at 8:05pm.

16x-4y=20

y=4x-4

I ask for help with this and forgot to add the problem. can anyone help me understand how to do this?

16x-4y=20

-4x+y=-4

___________

16x-4y=20

(4)(-4x+y=-4)

______________

16x-4y=20

-16x+4y=-16

______________

0=4

answer: empty set

16x - 4(4x-4) = 20

16x - 16x - 16 = 20

-16 = 20

It doesn't work. Anonymous is right. Empty Set.

- algebra -
**Anonymous**, Monday, May 27, 2013 at 2:17pm76-78

**Answer this Question**

**Related Questions**

algebra please help - 1/ 2/ 3x^2-22x-40 + 2/3x^2-16x + 20 add and simplify can ...

algebra - Solve the system by addition or substitution.

algebra - Solve the system by addition or substitution.

College Algebra - I knew how to do this but forgot. Solve by the substitution ...

Algebra - solving linear equations w/ substitution - The question in the book ...

math,algebra II - I need someone to explain to me step by step the process of ...

algebra - i need help with these problems (either a solution or how to plug them...

Algebra 1 - Solve the following system by using either addition or substitution...

Substitution Method-Plz help - Use the Substitution method to solve the system ...

Algebra - There are two solutions to | 16x - 5 | = 3. The greatest solution is ...