49x+25y=172;25x+49y=121?
Answers
Answered by
0
Step-by-step explanation:
49x=172-25y
x=(172-25y)/49
put above value of x in another equation
25(172-25y)+49y=121
=>4300-625y+49y=121
=> 4300-576y=121
=> 576y=4300-121
=> 576y=4179
=> y=4179/576
=> y=7.26 approx. answer
Similar questions