The product of a and b is equal to 12 more than twice the sum of a and b. If b = 10, what is the value of b - a?	Select.
A) 2
B) 5
C) 7
D) 6
E) 35
ab= 12 + 2(a+b)   10a= 12+2a +20   8a= 32   a=4   b-a= 10-4= 
<gadget id="calculator">10-4</gadget>
<output>6</output>
6   6 is the answer
<result>D</result>
The product of a and b is equal to 12 more than twice the sum of a and b. If b = 10, what is the value of b - a?