Question

I've done math problems like this before but can't remember what to do. how do i work out 5c+1=7c-8

Answer 1

you would move the 7c to the left side

next , collect the like terms which are 5c and 7c ,and that would equal -2c

then you would do -8-1 which equals -9

then divide both sides of the equation by -2

then answer is c= 9/2

Answer 2

Hey there! :)

5c + 1 = 7c - 8

To do these types of problems, we must isolate our given variable [c].

So, we must separate the variables from the coefficients.

We can start by subtracting 1 from both sides.

5c + 1 - 1 = 7c - 8 - 1

Simplify.

5c = 7c - 9

Then, we subtract 7c from both sides.

5c - 7c = 7c - 9 - 7c

Simplify.

-2c = -9

Divide both sides by -2.

-2c ÷ -2 = -9 ÷ -2

Simplify.

c = 9/2

If you wish to simplify this further into a mixed fraction, then we can divide 9 by 2. This turns it into 4.5 which turns into 4 1/2 in fraction form.

Therefore, our answer is : c = 9/2 OR 4 1/2

~Hope I helped!~