15
If you mean: 6h+7 then 6*5 plus 7 = 37
58
It is: 16-(3*4) = 4
It is: (5*12)-2 = 58
The expression h + 56 can't be simplified. If you assign a value to h, you can calculate the sum.
15
5
If you mean: 6h+7 then 6*5 plus 7 = 37
15
58
It is: 16-(3*4) = 4
It is: (5*12)-2 = 58
If you mean: 6 = x-1 then the value of x is 7
To calcualte NCV you need calorific value on GAR, H on gar and Total moisture.
Do you mean h/2 -6 = 10 if so then the value of h is 32
Litmus paper or you could measure the number of H+ ions