11. If (a, 3) is a solution of 3x + y = 12, then find the value of a.
nt solutions for the equation 2x – 5y = 13.
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Given : x= a and y= 3 ( acc. to (a,3). ) ......
now , in equation put values of x and y
= 3*a + 3= 12
= 3a+3=12
= a= 12-3/3
= 9/3
= 3
so value of a= 3.
" sol for equation 2x-5y = 13 " in attachment of pictures...............
hopefully it will work....
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