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

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Answer 1 · 2017-06-03T15:24:32

See a solution process below:

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

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

$18 = t + 0$

$18 = t$

$t = 18$

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