How do you solve $39 - 12w = 7 - 16w$ ?

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Answer 1 · 2016-04-08T11:05:20

$w = -8$

Rearrange the equation so you have $w$ 's on one side and normal numbers (constants) on the other.

$39 - 12w = 7 - 16w$
$39 - 7 - 12w = -16w$
$39 - 7 = - 16w + 12w$

Simplify this to

$32 = -4w$

and divide both sides by $4$ ,

$32/4 = (-4w)/4$

$8 = -w$

Therefore, if $8 = -w$ , then $-8 = w$ .

How do you solve 39 - 12w = 7 - 16w39 - 12w = 7 - 16w?