Question

Good Morning Friends, friends please help me in these questions and I need fast answers.
Please use substitution method​

Answer 1

Step-by-step explanation:

(i) x-y= 12 -------------- (i)

2x+3y= 9 ------------ (ii)

By using elimination method

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

2x-2y= 24 ---------------(iii)

2x+3y= 9 ----------------- (iv)

Subtract equation (i) and (ii)

2x-2y= 24

2x+3y= 9

(-) (-). (-)

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

-5y= 15

5y= -15

y= -15/5

y= -3

substitute the value of y in the equation (i)

x-y= 12

x-(-3)= 12

x+3= 12

x= 12-3

x= 9

Therefore, the value of x is 9 and the value of y is -3

Same method use all the equation

correct explanation

hope you understand