Sunday, July 12, 2009

Whatis the math answer to 20 +c = 4c -7?

20 + c = 4c - 7


27+ c = 4c


27 = 3c


c = 27/3


c = 9

Whatis the math answer to 20 +c = 4c -7?
20+c=4c-7


27+c=4c


27=3c


27/3=9


c=9
Reply:The answer is:





group all of the like components together and figure it out. If you don't understand what grouping all of the like components together means, the answer is this: go to your teacher and ask for extra help. It's one thing for someone to hand you the answer here, and it's another entirely to be caught out on the test when you have no idea how to do it for youself. Trust me, you are doing yourself a favour by learning to do it yourself.
Reply:20 + c = 4c - 7


+7 - c= -c + 7


___________


27 + 0= 3c + 0





becomes 27=3c, then divide by 3





27=3c


--- ---


3 * 3





27=c


---


3





c=9





the * represents a space so that you didn't think i was dividing by 33, bc i wasn't :)
Reply:c=9 ...


20=4c-c-7


20=3c-7


27=3c


27/3=c


9=c
Reply:c=9
Reply:If you are trying to find the value of c, the answer is 9. This is how you solve:





1. Add 7 to both sides of the equation, which will yield:


27+c=4c


2. Then subtract c (which is actually 1c) from both sides, resulting in: 27=3c


3. Divide each side by 3, and you will isolate c. The result is 9.


4. Check if your answer is correct by plugging in "9" in place of "c" in the original equation:


Does 20 + 9 equal 4 (9) - 7? YES!
Reply:the answer would be 9=C





because you can only have C on one side and numbers on the other.


So this is how it would go:


20+c=4c-7


-c -c





= 20=3c-7


+7 +7





= 27=3c


divide by 3 and you get 9=c





=]
Reply:move the c over to the right by subtracting it and move the 7 over by adding to 20. You'll get 27=3c. divide by 3 and you've got your answer.
Reply:20 +7 = 4c - c


27 = 3c


c = 27/3


c=9
Reply:the answer is 9. add 7 to 20 to get 27. Subtract c from 4c to get 3c. Then divide 27 by 3 and you get c = 3. It's called combining like terms.
Reply:9
Reply:You solve something like this the exact same way you would solve something like ... x + 10 = 12. If you subtract 10 from each side of the equation, you end up with x = 2. Just remember that whatever you do to one side of the equation, you must do to the other. You want to get the variable on one side by itself. Try adding 7 to both sides of the equation and subtracting c from each side of the equation...
Reply:6.75
Reply:20+c=4c-7


subtract 1c off each side leaving 20=3c-7


then add seven to each side leaving 27=3c


then divide each side by 3 which leaves 9=c
Reply:27=3c


27 divided by 3 = c





c=9


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