Question

3a+1=-3.6(a-1) what is the answer

Answer 1

Let's set it up like this:

`3a+1=-3.6\left(a-1\right)`
Multiply both sides by 10.

`3a\cdot \:10+1\cdot \:10=-3.6\left(a-1\right)\cdot \:10`

`30a+10=-36\left(a-1\right)`
We are now going to do the Distributive property, in thise case, we are going to multiply
`-36` by the inside of the parenthesis.

`30a+10=-36a+36`
Subtract 10 from both sides.

`30a+10-10=-36a+36-10`

`30a=-36a+26`
Add
`36a` to both sides.

`30a+36a=-36a+26+36a`

`66a=26`
Divide both sides by 66.

`(66a)/(66)=(26)/(66)`
Our answer would be:

`a=(13)/(33)`

Let me know if you need any more help!
Thanks!
-TetraFish