Question

Solve the system by using elimination or elimination with multiplication.
3x - 2y = 9 and -3x + 2y = -9

Answer 1

3x=9+2y
x=9+2y/2

putting the value of x in eq.2
-18-6y+4y=-18
-2y=36
y=-18

Answer 2

same way, u can find value of x,, and btw you must have posted this question in mathematics :)

Answer 3

@d.t. ,, did u get that 1??

Answer 4

yeah ofcourse...its the same thing i'm studying nowadays

Answer 5

no,, that endothermic 1??

Answer 6

yes thanku

Answer 7

hey @hkaur this is not elimination method .it is substitution method with which you have solved the question and it is not correct either the correct soln is-[x=9+2y/3]
puttng the value in eqn 2nd we get -3*(9+2y)/3+2y=-9
-9-2y+2y=-9
-9=-9 which is a false statement
hence there is no soln....


and through alimination method
we will subtract the two eqns
3x-2y=9
-3x+2y=-9
------------
o=0
so no soln is there which is a false statement