Question

Can anyone help solve this simultaneous equation:
y=2-x
2y=3x+9
​

Answer 1

Step-by-step explanation:

if y=2-x then

2*2-x=3x+9

4-x=3x+9

-x-3x=9-4

-4x=5

x=5/-4

or

x=-5/4

Answer 2

Answer:

➡️y=2-x

➡️2y=3x+9

✳️x+y=2.(equation 1) (putting in proper sequence}

✳️-3x+2y=9(equation 2)

➡️3x+3y=6.(eq 3) (multiplied eq 1 by 3)

➡️5y=15. (added eq 3 from 2)

➡️y=15/5

➡️y=3

✳️ substituting value y=3 in eq 1

➡️x+y=2. (eq 1)

➡️x+3=2

➡️x=2-3

➡️x=-1

✳️(x,y)(-1,3) is the solution of the given quadratic equation

Step-by-step explanation:

hope you appreciate this ans