Friday

November 28, 2014

November 28, 2014

Posted by **Wanda** on Wednesday, August 8, 2012 at 11:31am.

4x-2y=16

5x+7y=1

- Elementary Algebra -
**Reiny**, Wednesday, August 8, 2012 at 11:55amdivide the first by 2, then solve for y

y = 2x-8

sub into the second

5x + 7(2x-8) = 1

19x = 57

x = 3

then y = 2(3) - 8 = -2

**Answer this Question**

**Related Questions**

Elementary Algebra - How do you solve by elimination this linear equation? 8x-3y...

Algebra - use elimination to solve this problem x +8y = 3 4x - 2y = 7

algebra - how do you solve this problem by elimination method 5r-3s=14 3r+5s=56

algebra - how do you solve this problem by elimination method 3x+4y=2 6x+8y=4

algebra - solve the linear system from problem 1 using elimination 4x-y=5 4x+4y...

math - can someone please help me with this elimination methods problem? 0.05x+0...

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

Elementary Algebra - The perimeter of a soccer field is 280yd. The width is 5yd ...

Algebra - Solve by elimination method. 7r-3s=14 3r+7s=64 Could never figure out ...

algebra - Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this...