Answer:
12x + 2
Step-by-step explanation:
Let the number be represented by x.
Then five times the number = 5*x
Seven times the number = 7*x
Sum of 5 times the number minus -2 = [tex]\[5*x - (-2)\][/tex] = [tex]\[5x +2\][/tex]
Adding seven times the number to this expression yields, [tex]\[5x+2+7x\][/tex]
[tex]\[= (5+7)x+2\][/tex]
[tex]\[= 12x+2\][/tex]
So the simplified expression corresponds to 12x + 2.
