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1. Solve equation: 2x-16=3(2x-2)+5
   Solution: 2x-16=6x-6+5; 2x-16=6x-1; -16+1=6x-2x; -15=4x; x=-15/4; x=-3 3/4
   
   
2. A number plus 1/3 that number plus 2 less than twice that number equal to 12. What is the number?
   Let the number be x. Then: x+1/3x+2x+2= 12; x+1/3x+2x= 10; 3*(x+1/3x+2x)= 10*3; 3x+x+6x= 30; 7x=30; x=30/7; x=4 2/7
   
   
3. A camera is on sale for 20% that results in $30 savings. What was the original price?
   Solution: 0.2x=30; x=30/0.2; x=$150 
   
   
4. If you are paid $12/h, work 40h/week, and get additional $0.25 per item sold, how many items you need to sell to make $500?
   12*40+0.25x=500; 480+0.25x=500; 0.25x=500-480; 0.25x=20; x=20/0.25; x=80
   
   
5. You bank account value, A, grew to $12,720 in 1 year (time, t=1). How much should be your principal, P, if the interest rate is 6%
   Solution: A=P*(1+rt); P=A/(1+rt); P=12,720/(1+0.06); P=12,720/1.06; P=12,000
   
   

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