Question

Which equation has only one solution?

A) c+2=c+2
B) c=-c+2
C) c+2=c-2
D) c-c=2

Answer 1

B

Explanation:

Equations A,C,and D result in 2=2. So those equations have no solutions.

Therefore, B is the answer.

Proof,

c = -c+2

c+c = 2

2c = 2

c = 1

Answer 2

B

I hope this helps you

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