please please help and show your work please
2007-11-20 09:42:19 · 9 answers · asked by Anonymous in Education & Reference ➔ Homework Help
It's just basic algebra. You have to get c all by itself on one side of the equation, so you end up with "c = ..." So:
7c - 4 = -32
7c = -28 (added 4 to both sides to get rid of the -4 on the left)
c = -4 (divided both sides by 7 to get c all by itself)
2007-11-20 09:47:30 · answer #1 · answered by Navigator 7 · 1⤊ 0⤋
This is a simple equation. Use the same steps you would with any other equation.
7c - 4 = - 32.
Whatever you do to one side of an equation you have to do to the other, to keep it equal.
7c - 4 + 4 = -32 + 4
7c = -28
7c / 7 = -28 / 7
c = -4
Prove it by substituting - 4 for c in the equation.
2007-11-20 09:51:52 · answer #2 · answered by Debdeb 7 · 0⤊ 0⤋
7C-4=-32
7C=-28
C=-4
start by adding the -4 to the -32, so when you move the -4 it becomes positive then it simple addition
then divide by 7 so that the C is alone
you should end up with -4
2007-11-20 09:47:30 · answer #3 · answered by melstxi055 3 · 1⤊ 0⤋
You need to get the c on its own, so you have an equation which looks like c = something.
To do this, you remember that provided you do the exact same thing to both sides of an equation, it's still true.
So, start off by adding 4 to each side:
7c - 4 + 4 = -32 + 4
Now simplify it by doing the sums on each side:
7c = -28
Now divide each side by 7:
7c / 7 = -28 / 7
and do the sums again
c = -4
2007-11-20 09:48:10 · answer #4 · answered by Anonymous · 1⤊ 1⤋
7c - 4 = -32 upload 4 to the two factors +4 +4 _________The -4 further to 4 makes 0 7c = -28 deliver 7c down, and subtract -32 from 4 7c = -28 Now you desire to get C via itself __ ____ so which you're able to divide the two factors via 7 7 7 c = -4 this may well be your answer... dont neglect the damaging sign!!! Math will purely get much less stressful in case you prepare, that's the sole way you would be taught it.
2017-01-05 21:46:45 · answer #5 · answered by ? 4 · 0⤊ 0⤋
7c-4=-32
+4 +4
7c=-28
divide 7 by both sides
c=-4
2007-11-20 09:49:36 · answer #6 · answered by rie 3 · 0⤊ 0⤋
to get the answer you have to work backwards, whatever is positive becomes negative and so on. for this one it is -32+4 which gives you -28, and then divide -28 by 7 which leaves you with -4
2007-11-20 09:49:51 · answer #7 · answered by forgotten><child 1 · 0⤊ 0⤋
7c-2=-32
7c-4+4=-32+4
7c=-28
c=-4
2007-11-20 10:11:58 · answer #8 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
What they said!!!
2007-11-20 09:50:54 · answer #9 · answered by Joshua W 2 · 1⤊ 0⤋