Asked by Rachel
Which answer choice shows 2x-y=z correctly solved for y?
A: y=2x+z B: y=2x-z C:y=-2x+z D: y=-2x-z
Here's how I did it:
2x-y=z
-y=2x+z
y=-2x-z
Am I right? I have a feeling I'm not, so I would like some confirmation one way or the other.
A: y=2x+z B: y=2x-z C:y=-2x+z D: y=-2x-z
Here's how I did it:
2x-y=z
-y=2x+z
y=-2x-z
Am I right? I have a feeling I'm not, so I would like some confirmation one way or the other.
Answers
Answered by
Bosnian
2 x - y = z Add y to both sides
2 x - y + y = z + y
2 x = z + y Subtract z to both sides
2 x - z = z + y - z
2 x - z = y
y = 2 x - z
2 x - y + y = z + y
2 x = z + y Subtract z to both sides
2 x - z = z + y - z
2 x - z = y
y = 2 x - z
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