## Jessie81 3 years ago can someone help me plz.... I need to solve this: x+2y=8 x=4-2y

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1. freewilly922

1) ask yourself what the slopes of both equations are. Then ponder on the answer

2. Jessie81

lol, I just don't understand how to put it together... I think 2y-x=8. see, this is what confuses me

3. freewilly922

Well ... the answer for this problem comes from identifying the slope for the two equations of lines that you are given. The solution is where these two line cross. trust me. Please just ask yourself whether the two slopes of the two different lines are different.

4. Jessie81

hmmmm, not understanding you, can you show me an example

5. freewilly922

Ok EQ 1) x + 2y =8 the slope can be done by converting to slope-int form 2y = 8-x y = 4-0.5x So the slope is -0.5 EQ 2) x = 4-2y x-4 = -2y -0.5x +2 = y Slope = -0.5 So this question is basically asking you when two lines with the same slope intersect. When is that?

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