The definition of complex, real and pure imaginary number is as follows:
The absolute value of this number is given by:
So, the absolute value of a complex number represents the distance between the origin and the point in the complex plane. On the other hand, the absolute value of a real number means only how far a number is from zero without considering any direction.
5(x - 8) - 7 = 40
B)
5(8 - x) - 7 = 40
C)
7(x - 8) - 5 = 40
D)
7(8 - x) - 5 = 40
Answer : D 7(8-x)-5 = 40
The product of eight minus a number and seven equals forty when decreased by five
Let the unknown number be x
eight minus a number means 8 -x
For product we multiply
The product of eight minus a number and seven
It means the product of 8-x and 7
So expression becomes 7(8-x)
The product of eight minus a number and seven equals forty when decreased by five
To decrease by 5 we subtract 5
7 (8-x) -5 and this equals 40
So equation becomes 7(8-x)-5 = 40