Thursday

December 18, 2014

December 18, 2014

Posted by **Anonymous** on Sunday, January 5, 2014 at 4:59pm.

4x - 7y = 15

-8x + 14y = -30

The answer says that there are infinitely many solutions, but I am getting 8x - 14y = 30 and -8x + 14y = -30. I think they both come up as 30 and -30, so they aren't the same. Could someone please explain how to do this?

- Algebra -
**Steve**, Sunday, January 5, 2014 at 6:40pmJust multiply everything in either of your equations by -1 to see that they are really the same equation.

2x = 4

is the same as

-2x = -4

**Answer this Question**

**Related Questions**

Intermediate Algebra - Solve using the elimination method. Show your work. If ...

intermediate algebra - solve using the elimination method. show your work. if ...

Intermediate Algebra - Solve using the elimination method. Show your work. If ...

Algebra - Checking a few answers to some algebra problems: 1.Find the slope of ...

Algebra 2 Helpp :( - QUESTIONS (vvv) (1) Solve the system by subsitution 2x + y...

Algebra/Elimination method - Solve using the elimination method. If the system ...

algebra - DonniceLifesaver I just want to know if my answer right?? Solve using...

Intermediate Algebra - Solve using the elimination method. Show your work. 14x+...

algebra 1 - Got a test tomorrow... Say you have a system of equations (linear), ...

8th Grade Algebra- Answer Check - Solve each system of equations, give the ...