If a=b-c, then
a) c=b-a
b) c=a+b
c) c=a-b
Also how do you get the answer?
2007-09-19 09:54:08 · 11 answers · asked by ami.lewa1403 1 in Science & Mathematics ➔ Mathematics
then
c=b-a
whateva you do to one side you must do to the other
1st
a=b-c
add c to both sides giving
a + c = b
then to get c on its own minus a fromboth sides of the equals sign giving
c= b - a
2007-09-19 09:59:38 · answer #1 · answered by coy carp 3 · 0⤊ 0⤋
Think of it numerically.
5 = 7 - 2
then
5 - 3 = 7 - 2 -3
2 = 7 - 5
Notice how the numbers have moved about.Mathematicians describe the manipulation as 'Subtract '3' from both sides'. Similarly with algebra
a, b, & c are different, fixed but unknown quantities.
So!!
a = b - c
Then
c = b - a (Answer a)).
2007-09-19 10:21:29 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋
a =b - c
a) c = b - a is right
I plugged in numbers for a b and c
I said a = 4 b = 5 and c = 1
i did 4 = 5 - 1
a said 1 = 5 - 4 which was true
b said 1 = 5+ 4 which is false
c said 1 = 4-5 which is false
2007-09-19 10:10:23 · answer #3 · answered by Grid 7 · 0⤊ 0⤋
Make it a suitable Triangle. you may use 5 balls on the hypotenuse, 3 greater to make the longest leg, and the relax 2 make up the shorter leg. The question does not say something approximately colours, so do no longer issue approximately that. It does, notwithstanding say TRIANGULAR physique, so the guy who created that diagram is largely slightly off.
2016-10-05 00:40:05 · answer #4 · answered by ? 4 · 0⤊ 0⤋
If you don't under stand how to solve for c, try pluging in actual numbers.
ex.
a = b - c
9 = 12 - 3
c would be 12 - 9 or 3
c = b - a
2007-09-19 10:01:08 · answer #5 · answered by sfroggy5 6 · 0⤊ 0⤋
a is the answer
if a=b-c then to find c
you bring it over the = sign and it becomes + so you have
c+a=b
then to get c by itself you take the a over the = sign and it becomes -
c=b-a
remember that when ever a number goes on the other side of the = sign the number's sign changes
2007-09-20 09:09:17 · answer #6 · answered by keshema2003 2 · 0⤊ 0⤋
The answer is a
First you solve for c
Add c to both sides
c+a=b
Then subtract a
c=b-a
2007-09-19 09:57:20 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Oh I said a without looking at answers already not sure how I know though it just is because a=b-c! Sorry not a lot of help!
2007-09-19 10:00:17 · answer #8 · answered by ???? 5 · 0⤊ 0⤋
"What you do to one side, you do to the other!"
Add c to both sides and you get:
c+a=b-c+c <<< -c+c = 0 so you get c+a=b
Subtract a from both sides you get:
c+a-a=b-a <<< +a-a = 0 so you get c = b-a
I hope that clears up your maths homework!
2007-09-19 09:56:55 · answer #9 · answered by ? 7 · 1⤊ 0⤋
a=b-c Add c to both sides
a+c=b Subtract a from both sides
c=b-a So it's a) c=b-a
2007-09-19 10:10:14 · answer #10 · answered by pazuzu_futurama 2 · 0⤊ 0⤋