How do you solve $3(x+8)=12$ ?

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Answer 1 · 2016-07-09T15:40:22

$x = -4$

There are 2 ways to approach this equation:

Using the distributive law,:

$3(x +8) = 12$
$3x + 24 = 12$
$3x = 12-24$
$3x = -12$
$x = (-12)/3$
$x = 4$

Or by isolating the bracket by dividing both sides by 3 first:

$(3(x +8))/3 = 12/3$

$x + 8 = 4$
$x = 4-8$
$x = -4$

How do you solve 3(x+8)=123(x+8)=12?