2x - 3y = 9; 2x + y = 13
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Step-by-step explanation:
2x-3y = 9 .........(i)
2x+y = 13............(ii)
multiply equation (ii) by 3
6x+3y = 39
add equation i and iii
2x-3y = 9
+ 6x+3y = 39
8x = 48
x = 6
put the value of x is equation i.
2*6-3y =9
12-3y = 9
-3y = -3
y =1
value of x = 6 and y = 1
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