Question

How do you solve `-1=t+(-19)`?

Answer 1

See a solution process below:

Explanation:

Add `color(red)(19)` to each side of the equation to solve for `t` while keeping the equation balanced:

`-1 + color(red)(19) = t + (-19) + color(red)(19)`

`18 = t + 0`

`18 = t`

`t = 18`