Posted by **Janna** on Wednesday, August 8, 2007 at 1:38am.

Not sure about this...

Need to solve by substitution

8x - 4y = 16

y = 2x -4

Substitute 2x -4 for y in the first equation and solve the resulting equation for x.

8x - 4(2x-4) = 16

16 = 16

The two equations are not independent. One can be derived fron the other. There are an infinite number of solutions

## Answer this Question

## Related Questions

- Algebra 1 - What is an equation of a line perpendicular to the line with ...
- How do I do this.?(Math.) - Use the Substitution method to solve the system of ...
- ALGEBRA 1!PLZ HELP! - Use the Substitution method to solve the system of ...
- algebra - solve by substitution 3x-y = -7 x+y = -9 Substitute 3x+7 for y in the ...
- algebra - 5x-2y=-5 y-5x=3 substitution Substitute 5x +3 for y in the first ...
- math - Solve systems by substitution 5x - 2y = -5 y - 5x = 3 Substitute 5x + 3 ...
- substitution method - -x-4y=-14 2x=y+1 Let's look at your two equations. -x - 4y...
- substitution method - -3x+y=-5 x+2y=0 Your equations: -3x + y = -5 x + 2y = 0 ...
- Math - Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 ...
- Math! - 6a + 5b = 10 , 6a - b = -110 a=________ b=_________ 6a + 5b = 10 6a - b...

More Related Questions