Question

elimination method of 2x-3y=20 x-2y=13​

Answer 1

Answer:

⇒ 2x - 3y = 20 ... 1

⇒ x - 2y = 13 ... 2

Multiply eq 2 by 2 and subtract eq 2 from eq 1

we get, y = - 6

substitute in eq 1 we get, x = 1

⇒ (x, y) ≡ (1, -6)

Answer 2

Step-by-step explanation:

2x-3y= 20 ------------ (i)

x-2y= 13 ------------ (ii)

Multiply equation (i) by 1 and equation (ii) by 2

2x-3y= 20 ----------- (iii)

2x-4y= 26 ----------- (iv)

Subtract eq.(iii) from (iv)

2x-4y= 26

2x-3y= 20

(+). (-)

------------------

-y= 6

y= -6

substitute the value of y in eq.(i)

2x-3y= 20

2x-3×(-6) = 20

2x+18= 20

2x= 20-18

2x= 2

x= 2/2

x= 1

correct explanations

Hope you understand

if you like make me brainlist