Question

(i) x + y = 5 and 2x - 3y=4 by elimination method..
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Answer 1

Answer:

Here is your answer

Step-by-step explanation:

x + y = 5 ( equation 1 )

2x - 3y = 4 ( equation 2 )

Now,

multiplying (eq.1) by 2 and subtracting (eq.2) from ( eq.1 )

(2x + 2y = 10) - (2x - 3y = 4 )

=> 2x + 2y - 2x + 3y = 6

=> 5y = 6

=> y = 6/5

Putting the value of y in ( eq.1 )

=> x+ y = 5

=> x + 6/5 = 5

=> x = 5 - 6/5

=> x = 19/5

Hope it helps...

Answer 2

SOLUTION:-

Given

• x+y=5

• 2x-3y=4

To find

• value of x and y

Explanation

☆ Elimination method ☆

• x+y=5__________(1)

• 2x-3y=4__________(2)

Multiply eq 1 by 3

3( x+y=5)

= 3x+3y=15____________(3)

On adding eq 2 and 3

2x-3y=4

3x+3y=15

__________

5x= 19

x= 19/5

Putting value of x in eq 3

3x+3y=15

3×19/5+3y=15

57/5 +3y =15

57+15y / 5 =15

57+15y= 75

15y=75-57

y= 18/15

Value of x= 19/5

and value of y= 18/15