How do you solve for x in $-x-3=1$ ?

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Answer 1 · 2017-05-23T13:18:59

See a solution process below:

First, add $color(red)(3)$ to each side of the equation to isolate the $x$ term while keeping the equation balanced:

$-x - 3 + color(red)(3) = 1 + color(red)(3)$

$-x - 0 = 4$

$-x = 4$

Now, multiply each side of the equation by $color(red)(-1)$ to solve for $x$ while keeping the equation balanced:

$color(red)(-1) xx -x = color(red)(-1) xx 4$

$x = -4$

How do you solve for x in -x-3=1-x-3=1?