For the question 5 I think it is yes but I am not VERY SURE
Answer:
x = 8
Step-by-step explanation:
2x - 7 = 9
Add 7 to each side
2x-7+7 = 9+7
2x = 16
Divide each side by 2
2x/2 = 16/2
x = 8
The reciprocal of a number is the number that the first number will multiply with that equals one.
So, for instance, the reciprocal of 3 is 1/3.
Since we can write 3 as 3/1, we can see it's simply flipping the numerator and denominator to find the reciprocal.
So, flipping numerator and denominator, the reciprocal of 31/2 is 2/31.
