Can anyone teach me how to solve this? ?

Question

5c-9=8-2c

Answer 1

combine like terms

5c+2c=8+9

7c=17

Answer 2

5c - 9 = 8 - 2c                   move the variables to one side of the equal

                                        sign by adding the opposite of the variable

                                        to both sides

5c - 9 + 2c = 8 - 2c + 2c

7c - 9         = 8 + 0c          now add 9 to both sides

7c - 9 + 9   = 8 + 9

7c = 17

c = 17/7

Answer 3

get the c's on one side and the regular numbers on the other side...

7c = 17 (I added 2c to both sides and added 9 to both sides)

c = 17/7 (I divided both sides by 7)

c = 17 / 7 or 2 3/7 or 2.43