The number has 6 digits.
the value of the smallest digit is 0.01
the value of the largest digit is 8000
the digit in the tens place is 2 less than the digit in the hundreds place.
the sum of the digit in the tens place and the digit in the hundreds place is equal to the digit in the thousands place
the digit in the tenths place has the same value in every place.
the remaining digit is the largest even digit.
what is the mystery number?

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: