Question

Solve the equation
-x/3 = 27
&
5c-9=8-2c

Help?

Answer 1

81

Answer 2

Is that all you need to do for the first one?

Answer 3

Oooooooh

Answer 4

Thank you thats a lot easier than i thought

Answer 5

How do i solve? I'm slightly confused do i need to subtract?

Answer 6

do you understand any of these problems....I mean about how to do them ?

Answer 7

Yeah second one! I really don't understand how to go about solving equations like this.

Answer 8

even the first one ? Do you understand how it was done ?

Answer 9

The first makes sense

Answer 10

5c - 9 = 8 - 2c ... we want to get the c terms on one side and everything else on the other side...and what you do on one side of the equal sign, you have to do on the other side.
So first we will add 2c to both sides
5c - 9 + 2c = 8 - 2c + 2c -- now we combine like terms
7c - 9 = 8 ...see how the 2c's on the right side cancelled out
now we will add 9 to both sides
7c - 9 +9 = 8 + 9 -- combine like terms
7c = 17....now we need c by itself, so we divide both sides by 7
(7/7)c = 17/7....the 7/7 turns into 1 and 1c is just c....
so c = 17/7 or in decimal form = 2.43

Answer 11

Thank you!! im taking notes

Answer 12

did u solve the second one?