Answer:
The expression for two times the difference of eight and d. is

Step-by-step explanation:
To Find:
Write an expression for two times the difference of eight and d.
Solution:
Difference of 8 and d = ( 8 - d )
So One Time Difference of 8 and d = 1× ( 8 - d )
∴ Two Times Difference of 8 and d = 2× ( 8 - d )
The expression for two times the difference of eight and d. is

Answer:
C. Divide both sides of the equation by -2.
Step-by-step explanation:
The goal of the equation is to isolate x. In order to do that we have to remove the '-2' by doing the inverse operation. That is the opposite operation, for example addition and subtraction, multiplication and division.
Since x is being multiplied by -2, we do the inverse which is division.
Infinitely many, because x can be anything and the equation will still be valid
Answer:
700
Step-by-step explanation:
420×5=2100
2100÷3=700
Answer: 700
Answer:
N = 140
Step-by-step explanation:
N/7 = 20
Inverse operation of division: multiplication
N/7 = 20
becomes:
N = 7 x 20
N = 140
Thus, the value of N is 140.