Question

How do you solve the equation `-5.5a-43.9=77.1`?

Answer 1

`a = 22`

Explanation:

`-5.5a - 43.9 = 77.1`

To solve for the variable `a`, we have to make it by itself. First, add `color(blue)(43.9)` to both sides of the equation:
`-5.5a - 43.9 quadcolor(blue)(+quad43.9) = 77.1 quadcolor(blue)(+quad43.9)`

`-5.5a = 121`

Divide both sides by `color(blue)(-5.5)`:
`(-5.5a)/color(blue)(-5.5) = 121/color(blue)(-5.5)`

Therefore,
`a = 22`

Hope this helps!