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3 years ago

Which equation has only 1 solution? A. c+2=c+2 B. c= -c+2 C. c+2=c-2 D. c-c=2 Please explain.

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

6 0

Answer:

B. c= -c+2

Step-by-step explanation:

A. ...................

c+2=c+2
c-c= 2-2
0=0

It has infinitely many solutions as the equation is correct for any value of c.

B. ...................

c= -c+2
c+c= 2
2c = 2
c = 2/2
c= 1

It has one solution only

C. ...................

c+2=c-2
c-c= -2 - 2
0 = -4

It has no solution as this equation is incorrect

D. ...................

c-c=2
0 = 2

It has no solution as this equation is incorrect

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