Question

Need help I'm getting it wrong I don't understand

Answer 1

W/3-15=12
remember, you can do ANYTHING to an equaiton as long as you do it to both sides
get w by itself

$\frac{w}{3}-15=12$
add 15 to both sides
$\frac{w}{3}+15-15=12+15$
$\frac{w}{3}+0=27$
$\frac{w}{3}=27$
tiemes both sides by 3/1
$\frac{3w}{3}=27*3$
$(\frac{3}{3})w=81$
$1w=81$
$w=81$