Question

Solve this by simultaneously
49x - 57y = 172; 57x - 49y = 252

Answer 1

Hi ....dear...
here is your answer!!!....
.
.
Let .....

49x-57y = 172 .....(1)

57x-49y =252 .....(2)......see picture....
so x= 7
y=3
...
..... hope it helped you!!
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#shubhendu......!!!!!.....

Answer 2

Heya !!!




49X - 57Y = 172 ---------(1)




And,





57X - 49Y = 252 ----------(2)



From equation (1) we get,




49X - 57Y = 172





49X = 172+57Y



X = (172+57Y/49) --------(3)



Putting the value of X in equation (2)





57X - 49Y = 252





57 × ( 172+57Y/49) - 49Y = 252







57 × 172 + 57 × 57Y/49 - 49Y = 252




9804 + 3249Y/49 - 49Y = 252






9804 + 3249Y - 2401Y = 252 × 49








848Y + 9804 = 12348




848Y = 12348-9804





848Y = 2544




Y = 2544/848



Y = 3







Putting the value of Y in equation (3)





X = 172+57Y/49




X = 172 + 57 × 3/49




X = 172+171/49 = 343/49


X = 7





Hence,



X = 7 and Y= 3




★ HOPE IT WILL HELP YOU ★