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