An equation is shown below 12 -9 + c=12 .What value of c makes the equation true?

A 0
B 3
C 9
D 12

9

Step-by-step explanation:

12-9=3 12-3=9 3+9=12

So C=9

Hey there!

12 - 9 + c = 12

Combine like terms.

3 + c = 12

Subtract 3 from each side of the equation.

3 - 3 + c = 12 - 3

c = 9

Check:

12 - 9 + c = 12

12 - 9 + 9 = 12

3 + 9 = 12

12 = 12

Hope this helps!

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.