Answer:
Step-by-step explanation:
Let the number be 'x'
[tex]\dfrac{x}{6}-10=2\\\\\\Add \ 10 \ to \ both \ sides\\\\\\\dfrac{x}{6}=2+10\\\\\\\dfrac{x}{6}=12\\\\Multiply \ both \ side \ by 6\\\\\\x=12*6\\\\x=72[/tex]
2)
[tex]\dfrac{1}{7}+x=\dfrac{2}{3}x\\\\\\x - \dfrac{2}{3}x=\dfrac{-1}{7}\\\\\\\dfrac{3}{3}x-\dfrac{2}{3}x=\dfrac{-1}{7}\\\\\\\dfrac{1}{3}x=\dfrac{-1}{7}\\\\\\\x=\dfrac{-1}{7}*3\\\\\\x=\dfrac{-3}{7}[/tex]
3)-3(v + 25) = 111
Use distributive property
-3v + (-3)*25 = 111
-3v - 75 = 111
Add 75 to both sides
-3v = 111+ 75
-3v = 186
Divide both sides by (-3)
v = 186/(-3)
v = -62
