Posted by **Dawn** on Friday, October 26, 2007 at 3:09pm.

Please help me solve:

y-x=5

2x-2y=10

&

5X+6y=14

-3y+x=7

- Substitution Method -
**bobpursley**, Friday, October 26, 2007 at 3:18pm
The first set cannot be solved, the two lines represented in the equations are parallel, and have no solution.

The second set, the second equation tells us that x= 3y+7, put that in the first equation

5(3y+7)+6y=14

15y+6y=14-35 solve for y

- Substitution Method -
**loren**, Saturday, July 10, 2010 at 9:17am
21y=-21 21y/21=-21/21 y=-1

## Answer This Question

## Related Questions

- Substitution Method-Plz help - Use the Substitution method to solve the system ...
- substitution method - Solve by substitution method please help me solve this. I ...
- Linear Equations - Can you please help solve this equation using the ...
- Algebra 1 - bobpursey, In this problem you helped me with earlier: Solve using ...
- Algebra II - How do you solve the linear equations x+y=5 3x-y=3 by use of the ...
- algebra - Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution ...
- math - Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution ...
- math - Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution ...
- Algerbra 1 substitution method - im really confused about this question: 2x-3y=...
- algebra - use the Substitution Method. Please give it a try. y = 3x + 4 5x + 3y...

More Related Questions