How do you solve $18-4v=42$ ?

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Answer 1 · 2017-01-20T20:18:25

$4v = 18-42 = -24$ $v= -6$

Answer 2 · 2017-01-20T20:21:37

See the entire solution process below:

First step, subtract $color(red)(18)$ from each side of the equation to isolate the $v$ term while keeping the equation balanced:

$18 - 4v - color(red)(18) = 42 - color(red)(18)$

$18 - color(red)(18) - 4v = 24$

$0 - 4v = 24$

$-4v = 24$

Now, divide each side of the equation by $color(red)(-4)$ to solve for $v$ while keeping the equation balanced:

$(-4v)/color(red)(-4) = 24/color(red)(-4)$

$(color(red)(cancel(color(black)(-4)))v)/cancel(color(red)(-4)) = -6$

$v = -6$

How do you solve 18-4v=4218-4v=42?