1.

3x+2y=5, 2x+3y=5 then x+y=?

Answer»

3x + 2y = 5......... (1)2x + 3y = 5..........(2)

Multiply eq(1) by 2 and eq(2) by 3

6x + 4y = 10........(3)6x + 9y = 15........(4)

Subtract eq(3) from eq(4)5y = 5y = 5/5 = 1

Put value of y = 1 in eq(1)3x + 2*1 = 53x = 5 - 23x = 3x = 3/3 = 1

Therefore,x + y = 1 + 1 = 2

3x+2y=5........(1)2x+3y=5........(2)

multiply eq1 by 2 and eq 2 by 3

6x+4y=10........(3)6x+9y=15........(4)

substract eq3 from eq4

5y=5y=1

put the value of y in any eq we get x=1

then x+y=1+1=2



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