Answer:
12
Step-by-step explanation:
10 8 subtract 2
8 12 add 4
12-10 subtract 2
10 14 add 4
Now we subtract 2
14-2 = 12
Answer:
Option D. 
Step-by-step explanation:
Let
x -----> the original price of one game
y ----> the original price of one security programs
Remember that


The total pay with discount is

we have that


Find the total pay without discount

The amount saved is the difference

Answer:
x = 10
Step-by-step explanation:
Rearrange terms
2(5+1)−3=72
Distribute
10+2−3=72
Combine like terms
7+2=72
Subtract 2 from both sides of the equation
7+2−2=72−2
Simplify
7=70
Divide both sides of the equation by the same term
7/7=70/7
Simplify
= 10
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