How can you use properties of equality to reason about these equations??

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asked Jun 22, 2019 44.3k views

1 Answer

Vijay Tholpadi · Answer 1 · 2019-06-26T12:00:59+0000

x = blue circle
y = red triangle
z = green square

1st line:

4x + y = 2z+ y
4x = 2z
x = 1/2 , z = 2

2nd line:

3x + 3y + z = x
2x + 3y + z = 0

3rd line:

2x + z = 6y

How can you use properties of equality to reason about these equations??

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