i'm having the same problem with the decimals. i have no idea how to approach this.
0.3x-o.5=1.2
0.7x-0.2y=-0.1
solve by elimination yet again.
do i change everything to fractions?
i'm really not sure how to do this one....
I can't seem to get the correct answer on this one.
Solve by elimination:
x+2/6 - 3(y+2)/2 = 1
x-2/2 + y-1/3 =0
(sorry i don't know how to make fractions in html...)
the answer is supposed to be (4,-2)
i think i'm messing up when i try to get rid of the fractions.
i get:
x+9y=17 and 3x+2y=8
i times the first one by -3 so i can cancel the x when added together and end up with 29y=65 which doesn't work.
any takers?
I am going to assume that the two equations you need solved are and
I said assume because without parenthesis what you wrote implies and I understand that you do not know latex and cannot write fractions, but you must be careful with order of operations and use ( ) to denote what goes with what
Anyway...
and
Let's multiply both sides of both equations by 6, this will cancel the denominators and we'll get
and
So and
So and
Can you solve and ?