Q. 3. Solve : x + y = 9, 3x + 2y = 22.
il corte in and 5 pensa
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Step-by-step explanation:
x + y =9 ----(1)
3x +2y = 22 ------(2)
Dividing equation (1) by 2
2x+2y = 18 -------(3)
Substrct equation (2) and (3)
3x+2y =22 ----(2)
2x+2y = 18------(3)
-----------------
5x. = 40
x= 40/2
x = 8
Put x =8 in equation (1)
x + y = 9
8+ y = 9
y = 9-8
y = 1
(x, y) = (8, 1 ) is the solution
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