Question

3x+2y=4;8x+5y=9 solve in substitution method ​

Answer 1

Step-by-step explanation:

How do you solve the following pair of linear equation by substitution method 8x+5y=9 3x+2y+4?

= 8X+5Y=9

= X=(9–5Y)/8 ……..(i)

3X+2Y=4 ……(ii)

Putting i in ii

= 3((9–5Y)/8) +2Y = 4

= 27–15Y + 16Y = 32

= Y = 5

Now putting Y in i,

= X= (9–25)/8

= X= -2

Hence, required solution of the given equations are, X=-2 and Y=5….

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