Question

x+y=5, 2x-3y=4 solve by elimination method

Answer 1

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 helped you.

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Answer 2

x+y=5. ....1
2x-3y=4. .....2
from 1
x=y-5
put in 2
2(y-5)-3y=4
2y-10-3y=4
-y-10=4
y=-14
and x = y-5
x= -14-5
x=-19
hopes helps
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