Question

Solve and show work.3a-4a+9=-12a+43-6a

Answer 1

`3a-4a+9=-12a+43-6a`

`-a+9=-12a+43-6a`

`-a+9=-18a+43`

`-a+9+18a=43`

`17a+9=43`

`17a=43-9`

`17a=34`

`a=34:17`

`a=2`

The answer is: a=2

Answer 2

A=2

First simplify

Regroup terms

Simplify

Subtract 9

Simplify

Addc18a

Simplify

Divide both side by 17

Simplify 34/17