The resultant of the given equation will be : y = 21
Given,
2/3y+y-4=31
Here,
First add the terms having same variable.
Add 2/3 y and y
2/3 y + y
= 5y/3
Now take -4 from LHS to RHS ,
5y/3 = 35
y = 7* 3
y = 21
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Let m be my age in years.If s is my son's age in years, then my son is 52s weeks old. If g is mygrandson's age in years, then my grandson is 365g days old. Thus,
365g = 52s.
Since my grandsonis 12g months old,
12g = m.
Since my grandson,my son and I together are 120 years,
g + s + m = 120.
The above system of3 equations in 3 unknowns (g, s and m) can be solved as follows.
m / 12 + 365 m /(52 x 12) + m = 120 or
52 m + 365 m + 624m = 624 x 120 or
m = 624 x 120 /1041 = 72.
So, I am 72 yearsold.
The problem is hard...i don't know if you understood this..Hope i helped!