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Let us revise Il.Solve the following simultaneous1) 5x – 3y = 8; 3x + y = 2

Answer»

x=1 and y= -1 is the correct answer

5x-3y=8..........equ.1

3x+y=2…........eq 2

from equ. 2

3x+y=2

y=2-3x.......equ. 3

now, on putting the value of y in eq. 1

5x-3y=8

5x-3(2-3x)=8

5x-6+9x=8

14x=8+6

x=14/14=1

Now , by putting the value of x in eq. 3

y=2-3x

y=2-3×1

y=2-3=-1. Ans

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it is too easy.the value of x=1 and the value of y=-1



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