2x + 2.25 linear equation

    8x + 9

 ——————

         4  

Step-by-step explanation:

Step  1  :

           9

Simplify   —

           4

Equation at the end of step  1  :

       9

 2x +  —

       4

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Adding a fraction to a whole

Rewrite the whole as a fraction using  4  as the denominator :

          2x     2x • 4

    2x =  ——  =  ——————

          1        4  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2x • 4 + 9     8x + 9

——————————  =  ——————

    4            4  

Final result :

 8x + 9

 ——————

   4  

Processing ends successfully

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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: