Question

2x+3y=12 & 3x+2y=13 than find (x+y)

Answer 1

2x+3y=12.......... equation (1)
3x+2y=13...........equation (2)
add both equation (1) and (2), we get..
2x+3y=12
+
3x+2y=13
equal to
5x+5y=25
=5(x+y)= 25
= (x+y)= 25/5= 5
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